That 0.1 numbering gives a good indication of just how light the visible feature set might be, though -- other than an existing update to substitute the virtual menu button for a long-press of the home key, the interface changes are mostly limited to dedicated buttons for switching browser tabs and between different cameras.
AllJoyn syncs devices together using wireless technology like Wi-Fi and Bluetooth and automatically finds other devices that are running that same app and with a quick press of a button, syncs the devices together.