mate there are lots.
torque app
movietube - watch new movies on your phone
prey - know where your phone is if it gets nicked
lookout - scans apps/updates to make sure no virus is being downloaded
tunein radio - dab radio
zedge - wallpaper/ringtones etc
3g watchdog - keep an eye on your data usage
bbc iplayer app
whatsapp
tapatalk - forum tool
photobucket