I think the N800 handles everything it needs to do quite well. Sites load fast, audio/video plays well, scrolling can sometimes be a little laggy, but I think there is plenty of room for improvement in the maemo platform.

Nokia is well known for releasing new models quite regularly, I'm sure the next IT will have a beefier processor, more ram, but you also need to make sure that battery life is acceptable. At the moment I think we're doing pretty good with the N800.

I don't know about you but I like the size of the N800 and the battery life. I'd rather we see optimisations via the platform and associated software (ie: flash) rather than just making the IT bigger and bulkier so we can have more power.

My 2c