Radio is slightly better than the MDA, IMO. BT radio is definitely better. WM6 is sweet, and stable.... speed and battery are fine overclocked at 247. The BT stack is waaaay better for A2DP.
The big problem is program memory... something around 15MB before plug-ins, and with a medium-bad leak. No one has real good answers yet, and we are all DESPARATELY waiting for custom ROMS! In the meantime, I've recommended using Oxios to clear memory as often as possible, and soft resets at least once a day.
It's really a great device, except for the memory problem. If you do get one, make sure to check at HoFo as to the best purchase deal.
I'm at Dr. Johnson's office for a dental appointment.
Samsung i760... don't you want a dialpad??