Topic: Larger hi-res screen
I would like to see the chumby in a slimline format with a larger - say 6-8 inch, 800x600 screen - similar to the Make faire hack that Bunnie did. My reasoning is that it could be more of a communal device rather than a personal one. It could sit on a sideboard and show weather, and all the usual information at a touch - but also act as an excellent wireless photo frame feeding off flickr and perhaps using the local storage as a cache.
Purely as a photo frame, I think the chumby would be a big win - the current available photo frames rarely support wi-fi - and ones that do support it do so very very poorly or want to charge a monthly subscription.