Over at the ZDNet AnchorDesk, the widely read David Coursey, gave out his 5 forces shaping mobile technology. All seem relatively legit and straightforward if you're coming from the PC universe, as Coursey does.
Of course, the Mobitopia guys are coming from the phone world, and point out that the mobile space ain't the PC world, just smaller. I might have to agree, but further consideration is needed.
I can tell you from painful experience, trying to program a mobile device with old versions of the mobile Win32 APIs was truly painful. An undergraduate of mine is having better luck with PocketPC 2002, but I think the Mobitopia guys have the right spin.