I've got my hands on Apple iPhone. I have to admit that it looks&feels great, UNIX inside and so on. However there is a lot of room for improvements and tweaks, so I'm going to switch to a new platform and play with that. iPhoneOS looks prettly much like PalmOS with same conceptual solutions. Objective-C is a pain in the ass. Python bindings are buggy. No Qt. No linux (BSD subsystem is not really the same).

The hardware is mostly "problematic" one, but geez, Palms weren't easy pick too. And it's definitely fun :)