Hi.

I am faced with a similar predicament of thinking about an iPOD touch. No one can deny the fact the interface is nothing short of perfect and it does what it is supposed to do very well! Add that to the fact the soon to be released sdk, the touch will be very serious contender for tablets. I agree that potentially there could be many applications developed around maemo, but will it have the same energy and momentum and excitement that Apple SDK will have? Moot point. But personally I would still keep the 800 as it has skype and Gizmo, which is awesome.
Cheers
Anand