Rogue Amoeba has released a major update to Airfoil Speakers Touch adding native iPad support and a new optional feature for receiving audio directly from iTunes and other AirPlay audio sources. Originally designed as a companion app for the company’s Airfoil for Mac and Windows, Airfoil Speakers Touch allows users to listen to audio streamed wirelessly from their computer to their iPhone, iPod touch or iPad. Version 3.0 adds a new “Enhanced…