German T-Mobile is now set to release an updated version of its current Pocket PC Phone Edition. The new new T-Mobile MDA will include the new operating system Windows Mobile 2003 OS, a better display with 16-bit support (65,536 colours) and builtin camera.
The device is very similar to the XDA II, also to be released by the end of this year by British O2.
It's not confirmed on the MDA, but the XDA II comes with Bluetooth built-in.