Well, after using Palm on treos from the Treo 300 to the 755p, BB on a pearl, and WinMo from the ppc6700 through the Touch, hands down Windows mobile for me. As the previous poster said, there is so much you can do to make your phone YOUR phone. And, as a Sprint user, the EVDO speeds are really nice and OPera works as a great browser... Anyways, the only new Palm OS phone you can get anymore is the Centro, and that kinda feels like a toy when you use it. The new treo has WinMo anyways. With that being said, I already reserved a Touch Pro at my local store...