By Wook Kim
Updated December 03, 2008 at 07:45 PM EST

Enter your phone number onto, schedule a time for one of its servers to call you, and wait for your phone to ring. Use it as a wake-up call, as a way to locate a misplaced phone, or even as an excuse to get out of a disastrous date. You can also — oh, excuse me, I need to take this call…Hello?…uh-huh…yeah…really?…okay…I’ll be right there…Hey, I hate to do this to you, but that was my, um, sister calling and it seems one of her cats ran up a tree and I’m, like, the only person who can get it down and…