Just found out that in xda-developers some people already extracted the t-mobile SIP that uses T-9 features and made available for pocket pcs

http://forum.xda-developers.com/view...ghlight=t9+cab

you can follow the link to download the cab installation file.
I've just tested it and it worked great!

HP ipaQ hx4705 wm5 2.01 /w AKU 3.5.2
Dell Axim x50v WM5 /w AKU 3.5.2
Dell Axim x30h wm2003se A06 JPN
HP ipaQ h6315 wm2003 TWN
4GB Transcend SD Card 150x x2
8GB Trancend CF Card 150x x2
Eng->Jap x50v tutorial

Sweet! Thanks!!!

Dell Inspiron Mini 9 | Dell Axim X30 312Mhz Wifi/BT | LG Env w/ 2GB MicroSD | GlobalSat BT-338 Bluetooth GPS | Motorola HS850 | PSP 1.5 | Apple iPod Touch 8G | Dual Core XPS 400 |

I am 21.30178% geek