One of the first — if not the first — apps to take advantage of the iPhone 4’s forward-facing camera for security purposes should appeal to users with nosey coworkers and paranoid types alike.
Free app Big Brother keeps grubby mitts (that aren’t yours) from defiling your iPhone 4 by launching the passcode screen if someone attempts access while the app is running, then emits a blaring alarm if the passcode is botched; it also takes two photos and records the GPS coordinates if the alarm is triggered — and emails you the info — so you can maybe identify who’s prying, and where the attempted access occurred.
It’s no realtime GPS iPhone tracker, but it could act as a deterrent — or possibly help locate a stolen iPhone in cases where the iPhone is snatched and then fiddled with later.