iBeacons + Android

iBeacons sound like a great tool, and if is adopted by enough partners, will open up location awareness to a whole new level.

Will Android devices be able to take advantage of iBeacons too, or is there proprietary level of technology added so that only iOS devices will be able to interact with them? As far as I'm aware they are solely based on a BT4.0 open standard.

I kind of expect Apple to close the system to just be accessible to their own devices, but I'm hoping that they haven't.

Does anybody know?