One of the things that I am very curious about is a cloud-based laptop/netbook/tablet. The Google Chrome OS is already under development as a free, open-source operating system (called Chromium, by the way) and now Google is piloting their own hardware which will come preloaded with Chrome. It will be released in the States with 100MB FREE 3G data from Verizon every month for two years (with optional increases available for those who need it, of course).
This video clip shows how quickly the Chrome OS boots/sleeps/wakes and nicely makes the point that living in the cloud make that the device itself irrelevant.