TomaTito on 27 August 2012
It depends on what wireless connection type they will be using for the gamepad, if they are using the standard IEEE 802.11n there are already devices that do what you describe.
You will also have to wait for reports on real life performance of the connections range and strength. Obviously those depend on many factors such as building type (flat/house), wall/celling materials (wood/steel/concrete), signal saturation, etc. Depending where you live you will have a better or worse performance, and might not even need an extender.
