YMTiny is a free J2ME Yahoo Messenger. Directly connects to the Yahoo's server.

Just connect with your Yahoo! ID, no other registration needed.

It should works on all CLDC 1.0 and MIDP 2.0 devices.

Update: 30 Apr 2008 - 1.3.2
- Reduces fonts and icons quality for smaller jar size

Update: 25 Apr 2008 - 1.3.1
- Adds tiny bitmap font
- Longer login timeout (60 seconds)

Update: 21 Apr 2008 - 1.3
- Removes tiny bitmap font
- Adds medium bitmap font
- Improvement on authentication (login timeout)
- Some minor optimizations (GUI and threads)
- Status is shown next to YahooID (press 7 to show/hide them)

Features:
- Settable message alerts: sound (midi), vibrate, flash backlight, open IM window
- Bitmap fonts for consistent interface
- "Smart Ping" maintains connection and minimizes bandwidth usage
- Receives offline messages, new mail and typing notifications
- Set status and custom status
- View a friend's status, show and hide offline friends
- Send and receive BUZZ!!!
- Run in background and auto-restore
- Window and scroll animations
- Stylus support
- 54+2 Emoticons!

Limitation:
- Emoticons only work on bitmap fonts, goto settings to change font

More information:
http://www.orisinil.com/ymtiny

Download YMTiny:

1. ymtiny.jar Size: 127.24 Kb Compatible with: Alcatel: One Touch 557a, One Touch 756, One Touch C550, One Touch C552, One Touch C552a, One Touch C750, One Touch S853 BenQ: C30, P50 BenQ-Siemens: CL71, E61, S81, S88 BlackBerry: 7100i, 7130e, 7250, 7290, 8100, 8300, 8700 CECT: A1000 Dopod: Dopod 515, Dopod 565, Dopod 575, Dopod 585 HTC: P3400 Huawei: U526, U626 I-mobile: 510 LG: B2070, B2150, C1100, C1150, C2000, C2600, C3400, CG225, CU400, CU500, F2400, KE770, KE970, KG200, KG220, KG225, KG240, KG245, KG300, KG320, LG550, LX550, LX570, M4410, MG100a, MG105, MG220, P7200, S5200, U8210, U8290, U8330, U8500 Mitac: Mio 8390, Mio 8860, Mio 8870 Motorola: A1200, A760, A780, C261, C380, C390, C650, C975, E1000, E1070, E398, E398B, E398i, E550, E680, E680i, E770, E770-Vodafone, E790, E815, i830, i930, K1, L6, L6i, L7-Vodafone, L71, MPX220, Razr V3, RAZR V3a, RAZR V3m, Razr V3x, RAZR V3xx, RAZR V3xxv, RAZR V6, RAZR2 V9, RAZR2 V9m, ROKR E1, SLVR L7, SLVR L7e, SLVR L7i, V1075, V177, V180, V186, V188, V190, V191, V195, V197, V220, V235, V300, V303, V360, V360-Vodafone, V365, V3i, V3m, V3r, V3t, V3v, V3x-Vodafone, V400, V500, V505, V525, V525M, V535, V545, V550, V551, V555, V557, V600, V600i, V620, V635, V690, V80, V975, V980, V980M, W220, W490, Z3 NEC: N600 Nokia: 2610, 2626, 2630, 2855i, 2865, 2865i, 3152, 3155, 3155i, 3220, 3230, 3250, 5140, 5140i, 5200, 5300, 5310 XpressMusic, 5500, 6020, 6021, 6030, 6060, 6060v, 6061, 6070, 6080, 6085, 6086, 6101, 6102, 6102i, 6103, 6111, 6125, 6126, 6131, 6133, 6151, 6155, 6165, 6165i, 6170, 6230, 6230i, 6233, 6234, 6235, 6235i, 6255, 6255i, 6260, 6265, 6265i, 6267, 6270, 6275i, 6280, 6288, 6300, 6555, 6600, 6620, 6630, 6670, 6680, 6681, 6682, 6708, 6822, 7260, 7270, 7360, 7370, 7373, 7390, 7610, 8600 Luna, 8800, 8800 Sirocco, 9300, 9500, E50, E60, E61, E61i, E62, E65, E70, E90, N70, N70-1, N71, N72, N73, N75, N77, N80-1, N90, N91, N92, N93, N93i, N95 Orange: SPV, SPV e100, SPV E200 Panasonic: SC3, VS2, VS3, VS6, X500 Pantech: PG-1400, PG-1410, PG-C300 Philips: 568, 588, 755, 756, 766, 768, S890, S900 Qtek: 8100, 8500 QTEK: QTEK 7070, QTEK 8010 Sagem: MY 302X, MY 301X, MY 400V, MY 400X, MY 401C, MY 401X, MY 401Z, MY 501C, MY 501X, MY 600v, MY 600x, MY 700X, MY C4-2, MY C5-2, MY C5-2 Vodafone, MY V-55, MY V-56, MY V-65, MY V-75, MY W-7, MY X-4, MY X-5-2T, MY X-6, MY X-7, MY X-8, MY X5-2, MY X5-2M, MY X6-2, MY Z-5, myX5-2v, Sagem myS-7 Samsung: SGH A701, SGH A707, SGH C130, SGH C140, SGH C160, SGH C200, SGH C207, SGH C207L, SGH C210, SGH C230, SGH C300, SGH C400, SGH C406, SGH C417, SGH D407, SGH D410, SGH D500, SGH D500C, SGH D500E, SGH D510, SGH D520, SGH D600, SGH D600E, SGH D720, SGH D800, SGH D807, SGH D820, SGH D830, SGH D836, SGH D840, SGH D900, SGH E250, SGH E300, SGH E310, SGH E310C, SGH E315, SGH E316, SGH E330N, SGH E340, SGH E340E, SGH E350, SGH E350E, SGH E360, SGH E370, SGH E376, SGH E420, SGH E500, SGH E530, SGH E568, SGH E570, SGH E600, SGH E620, SGH E690, SGH E710, SGH E715, SGH E720, SGH E728, SGH E730, SGH E736, SGH E760, SGH E780, SGH E810, SGH E840, SGH E870, SGH E878, SGH E890, SGH E898, SGH E900, SGH G600, SGH i300, SGH I320, SGH I607, SGH J600, SGH L760, SGH M600, SGH P200, SGH P300, SGH P310, SGH P400, SGH P510, SGH P777, SGH P850, SGH P900, SGH P906, SGH P910, SGH P920, SGH T209, SGH T319, SGH T509, SGH T509S, SGH T519, SGH T609, SGH T619, SGH T629, SGH T729, SGH T809, SGH U600, SGH X105, SGH X120, SGH X160, SGH X200, SGH X210, SGH X300, SGH X430, SGH X450, SGH X480, SGH X486, SGH X490, SGH X495, SGH X500, SGH X506, SGH X507, SGH X510, SGH X520, SGH X530, SGH X540, SGH X620, SGH X620C, SGH X630, SGH X636, SGH X640, SGH X640C, SGH X648, SGH X650, SGH X660, SGH X670, SGH X680, SGH X686, SGH X700, SGH X820, SGH Z107, SGH Z140, SGH Z170, SGH Z230, SGH Z240, SGH Z300, SGH Z370, SGH Z400, SGH Z400V, SGH Z500, SGH Z510, SGH Z530, SGH Z540, SGH Z560, SGH Z720, SGH ZV10, SGH ZV40, SGH ZV50, SPH A900, SPH A900P, SPH A920, SPH A940, SPH A960, SPH M500, SPH M510, SPH M610, Z130, Z150 Sanyo: S750, SCP-6600 Sharp: 770SH, GX-L15, GX15, GX17, GX25, GX29, GXT15 Siemens: AP75, C65, C65-Vodafone, C66, C72, C75, CF75, CF76, CX65, CX70, CX75, EF81, M65, M75, ME75, S65, S75, SK65, SL65, SL75, ST60 Sony-Ericsson: D750, D750i, F500i, J220i, J300a, J300i, K200i, K300, K300a, K300i, K310, K310a, K310i, K320i, K500i, K508, K508c, K508i, K510a, K510i, K530i, K550i, K600, K600i, K608i, K610, K610i, K618i, K700, K700c, K700i, K750, K750i, K790a, K790i, K800i, K800iv, K810i, M600i, P1i, P900, P910, P910a, P910i, P990i, S700, S700i, S710a, T250i, V600, V600i, V630i, W300, W300i, W550c, W550i, W600c, W600i, W610i, W660i, W700i, W710i, W800i, W810i, W810iv, W850i, W850iv, W880i, W900i, W910i, W950i, Z1010, Z300i, Z500, Z500a, Z520a, Z520i, Z530i, Z550a, Z550i, Z558i, Z610i, Z710i, Z800 T-Mobile: SDA, SDA (US name) VK Mobile: VK4000 Download to Mobile via WAP: Open wap.GetJar.com with your mobile -> Quick Download -> enter Quick Download Code 19557 Download to PC [?]: JAD file (ymtiny.jad) JAR file (ymtiny.jar)

YMTiny

i-mate i-mate K-JAM For (0)    Against (0) 2008 May 8
Abdul RaFy	Open request
Good Application add some feature like archive, add a emotion box and make the possibility for the voice chat :D All over nice! Thank You

Siemens C75 For (0)    Against (0) 2008 May 2
Anang	Open request
add and remove buddy isnt there

Nokia 5200 For (0)    Against (0) 2008 Apr 29
Novie	Open request
Little Disppointed coz i must know other email for chat

Motorola RAZR2 V8 For (0)    Against (0) 2008 Apr 14
Nguyen Khanh Anh Hoang	Open request
This is such a great MIDLet, however, if it contains these features (I hope so): - Enable the ability to get the contact's avatar (A setting switch to choose whether or not the MIDLet should do this). - Enable the ability to get the contact's REAL Name (I mean, the First name & Last name of them) - (Optionally), the feature to check whether the contact is truly offline or, is invisible.

Nokia 9500 For (0)    Against (0) 2008 Apr 12
chriztlaurentz	Open request
so far so good, and working with my nokia 9500. but how about emot icon ? im waitting for next release

Sony-Ericsson K550i For (0)    Against (0) 2008 Mar 30
arief	Open request
i hope on the next version i can chat with my msn friend list

Siemens C75 For (0)    Against (0) 2008 Mar 28
Didit	Open request
Please add window/tab for several chats that can make easy to switch to each chat.

Nokia 6230i For (0)    Against (0) 2008 Mar 20
japrax	Open request
hope for the next version its add join room fitur...coz we still have to sign in from the pc for add a friends from the rooms rgrds

Sony-Ericsson W200i For (0)    Against (0) 2008 Mar 8
akmal	Open request
i wish it can show msn friends that's added to ym and can add new friends too (ym id and msn id) :D thank you in advance...

Nokia N70 For (2)    Against (0) 2008 Feb 29
application monster	Open request
wish i can see the incoming message as i write the new message at the same time;)

Nokia 7610 For (0)    Against (0) 2008 Feb 13
phinoc	Open request
It is a realy great and stable app. but it still don't have add contact. It didn't receive any message when other send game request, but still send message correctly. Emotion still be type directly. how about converency and chat room ? thank you for the nice yahoo mini... :)

Nokia N70 For (0)    Against (0) 2008 Jan 10
Adi	Open request
Can I change the sound for new incoming message? When will you release a new version?

Nokia 9300 For (0)    Against (0) 2007 Dec 21
anton	Open request
sign in refused bad yahoo!ID or password

Nokia 6600 For (0)    Against (1) 2007 Dec 20
Rasool	Open request
Thanks for this great app. but i hope to add right-to-left option to support languages like 'Arabic'. It work with arabic, but the word characters are reversed.

Sony-Ericsson W900i For (0)    Against (0) 2007 Nov 28
iQbaL from Indonesia, Bali-Jogja	Open request
file transfer, grouping function, enable to set volume setting, enable to change the alert sound with my own library and support .mp3 and .wav file, message colors fix

Nokia 3220 For (0)    Against (0) 2007 Nov 14
EDDY from Indonesia	Developer response Feature added
Run in background, emoticons	This application can run in background for SE K510i and others phones. To view emoticons, you have to use bitmap fonts. Please goto the Settings page to change your font. Thx.

Nokia E50 For (0)    Against (0) 2007 Oct 22
Dandun Widiyanto from Indonesia	Open request
Nice application. For Further improvement please add message history and archieving; and feature to add new contact. Conference will be needed too :) Thanks, Dandun

SE W800i For (0)    Against (0) 2007 Sep 26
Junianto M from Indonesia, Jakarta	Open request
plz add grouping function

nokia E50 For (0)    Against (0) 2007 Sep 24
Dandun Widiyanto from Jakarta	Open request
Nice application, thanks. I wish you can add some feature here in next version : 1. male NO or REJECT CALL button pushing not immediately make the application Quit. 2. History and saving in txt file 3. Time marker 4. difference colour for each conversation. 5. Conference Thanks, dandun