The Sofabaton X1 seems to work fine with any device that does not require a pairing code or any other special treatment.
However, not all devices are like that. The PS3 is an example: Adding a bluetooth remote requires the user to press two buttons on the remote in order to initiate the pairing. There It seems like if those two buttons are not pressed, the PS3 will not recognize the device as a valid PS3 remote.
Adding the Sofabaton hub as a regular Bluetooth accessory also does not work, becaus then the PS3 asks for a pairing code to be entered. The Sofabaton has no interface for entering text r numbers during the pairing process.
I understand if all special cases (like the PS3) can't be handled, but at least the general Bluetooth pairing code functionality should be implemented. This would allow the Sofabaton hub to act as a normal keyboard/input device for a lot of additional devices.