Metastream - Watch streaming media with friends
keezy - A colorful soundboard. Play with music.
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Hyperbeam - A better way to watch together online
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.