DoubleTwist, an iTunes alternative for the Android ecosystem, has teamed up with chipmaker Qualcomm on the release of “MagicPlay,” which the two companies are describing as an open-source, media-streaming platform meant to challenge Apple’s AirPlay. The technology is built on Qualcomm’s AllJoyn protocol, a mesh networking platform that has been in development for several years, but which has yet to achieve serious OEM or consumer adoption.