The two units of the Project Virtual Keyboard has built in Bluetooh. The actual chip is not yet decided, but developers will have full access in the Open-API to the communication in order to customize the communication for special purposes of the device.
In normal operation, as a Keyboard or Gesture device, one of the units (Left hand) is connected to the other (right hand). The Right-hand unit is then connected to the computing device (tablet, smart phone, computer, laptop….) and the two are viewed as one unit.
For those that want to connect each of the units to the computing device, we will have support for this in the Open-API