I know a guy who invented a key less entry for a house.
You call a special receiver from your phone. You can unlock your doors, windows, pet cage, turn on/off the cooker (oven), all these kinds of things.
He also has a brand called Griffin which makes stuff for the I-Pod, I was going to get one from him, but my last one ended up in the pool so I'm having second thoughts.
They are pretty good, like some of them up north let you turn on your car heater using the key, mine did the A/C. (I live in Florida)
I have no clue what model it was though, sorry.
