Same apps as iPad 2... iCloud restored everything, even my tabs!
But the apps I use mostly are:
Facebook
Twitter
Remote
FileBrowser
iTeleport
Spotify (Sadly iPhone app)
Brother print/scan
WeatherChannel
PhotoSync
Skype
iPlayer
eBay
Flipboard
Engadget
iHotUKDeals
Distro
NY Times
TempleRun
FlightControl
🙂