Can two BL600 modules send data from one to the other in whichever direction I choose?

Answer

This is a function of the central role device in a BLE connection and, as the BL600 is designed to be a peripheral device, this functionality is not currently exposed. The BL600 is not able to function in the central role due to the Nordic S110 low energy stack, which does not yet allow this functionality. When this becomes available from Nordic, Laird plans to release a central role firmware solution.