How have you been finding iBeacons?
The api makes it very easy to use. I would like to get a generic beacon I can just slap on my door and forget about for 6 months or so, rather my current hack of using another one of my idevices to play with this.
As it is, I'll probably just get a raspi with a bluetooth le dongle, and use that (when my phone gets really close to the door, it unlocks the door, is the thought).
It's built in to corelocation in iOS 7... You can even use an iOS device as an iBeacon...