Add calls which haven't occured into the iPhone call history. The idea is to fool your friends into thinking they missed your call or you missed their call.
spoof your operator name in statusbar
auto-upload screenshots to CloudApp/TinyGrab
Background updater for Google Latitude.
hold Safari back/fwd for history list
Delete clocks and alarms with a swipe
finer time selection on Calendar events
use external apps to place calls
Reorganize your photos/videos