I have returned one n900 due to the same problem. I just reflashed my brand new, second n900 and the only widgets that I have added are facebook and foreca weather. My home screens are completely unresponsive now. Rebooting doesn't help. This is really frustrating. Any help on this is appreciated. The only other application I have consistently configured and used is Exchange. I have a very large mail file so I have only enabled synching three days back, and even then synching takes a really long time. That may or may not be a contributing factor. I tried felbutss terminal commands but that doesn't seem to do anything. I am a total noob so any help here is appreciated since this is a deal killer for using the phone.