This is an April Fool
"Enter the iCade iPad Arcade Cabinet! To use the iCade, gently slide the iPad into the docking cradle. The docking cradle uses a standard 30 pin connector to link the iPad to the professional-grade arcade controls. Once the iPad is in place, launch the iCade App (available free in the App Store April 3rd) and it's game on!"
(Spotter: the estimable S. Byron)