G-Park iPhone App Lets the Forgetful Bookmark Their Car [Dude Where's My Car]

Park your car and tap "Park Me" to take a GPS reading; on the way back, hit "Where Did I Park" for turn-by-turn directions back to the whip. It'll work for first-gen and iPod touch users (although not as well, I would imagine) via Wi-Fi and cell-tower positioning but 3G users will get turn-by-turn directions via GPS. Sure, you could just drop a pushpin in Google Maps, but part of the charm of these apps is going to be the simple execution of simple ideas, Xbox Live Arcade style. I recommend just remembering where you've parked. [PosiMotion]