Is Eric an urban legend?
How will lists affect Twitter clients?
Renaming your WiFi to talk to your neighbors
Foursquare and Gowalla
Is realtime necessary?
Need to figure out what makes certain Disney hotel rooms and attractions impervious to a cell phone signal, then deploy those conditions to the tween/teen sleepover site. You could make a mint. We have anti-spam and anti-virus, now we can have anti-sext 😉