Oh I know at least for the SNES emulator I can use the Wiimote, and mostly on the N900 I will probably be playing Solitaire and other touch/stylus friendly stuff. I may even still carry my iTouch around with me for certain things. But ideally, a built-in D Pad would be better although the keyboard should work nice for things like Pinball games which are hard to play on the iTouch.

I just hope that some device in the future they finally put a reasonably game friendly D Pad on there as surely having that plus everything the iPhone has, would be better. I mean this is the company who invented N-Gage which was great in theory, but it was too bulky and people weren't ready for gaming on their phones yet. Today I would not be surprised to find Nintendo release a DS Phone, people have been expecting the PSP Phone for ages, yet I am stunned none of the phone manufacturers have tried to beat them to it releasing a more game friendly phone.

People do play games on their phones, but I think once its as comfortable to do as it is on the DS and PSP (I say comfortable in a loose term as I have other personal issues with the PSP but related to its analog controller) then things will get interesting.

For me it's the exact opposite. I'm totally unable to use tracksticks, don't like to work with trackballs, and find D-Pads just fine -- they're not pointing devices though so they shouldn't be compared to tracksticks. For pointing I prefer either a stylus or a mouse.