Looking through the manual I think there are some encouraging signs that a release may be imminent:
1 - firstly the fact that the manual itself is all done and ready
2 - looking at the screenshots within the manual, the t-mobile software appears to be installed and displayed functioning
3 - the picture above of the touch dua...erm, plus

with the t-mobile logo on it.
I have to say I kind of agree with the 16 key comment above.
Why is everyone so obsessed with a 20 key QWERTY keyboard? If it was one letter to a key (such as on the Tytans) I could understand, but a 20 keypad wouldnt have that, you'd have to tap a button 1-3 times so why not stick to the tried and trusted 16 key version? Heck of a lot faster when texting too I'd imagine.