We got a look at N-Control's Avenger Controller Elite just last month, and the company is rounding out the hardware's May release with a full-court press on GameStop. The retailer's online store is now selling both the PlayStation 3 and Xbox 360 variants of the controller assist as straightforward, bundle-free $50 units. Company creator David Kotkin also tells us that the add-ons have had an extremely warm reception so far: although the Elite lineup had an unsung launch at GameStop on May 29th, it sold out on day one and is still in tight supply, wit
