Yes, I had in fact seen this a while back. I was talking to classmate of mine a couple days back about how I'm going to get this lock and Philips Hue bulbs kit soon..
Nice....Now we can control our lights with the Philips bulbs, Control the temperature of our house with the Nest thermostat, and now lock/unlock our home with Lockitron!
I'm not sure I should mention this or not, but a friend has been controlling those items in his home for about a year with his Android. He loves turning the lights on and off when his son is home entertaining and he's with me at a local tavern.
None of this is really iOS/Android/whatnot-specific--as long as apps are written for the platform (or at least a mobile-accessible site exists) then these frameworks can be controlled from the phone.