When iPad was first introduced, many musicians were excited upon the possibilities it would bring to the portable music making and mixing with the promising apps. But, there was a problem with both iPad and iPad 2. It is no way to connect musical devices and instruments together directly. iPad camera connection kit only allowed one device at a time with tethering. Was is helpful? Absolutely no even for the novice musicians and hobbyists. Hopefully, we have Alesis iO Pro dock. It is a docking station with slots for both iPad and iPad 2 fitting. Musical properties include MIDI In and Outs, USB MIDI, Stereo outputs, guitar / XLR mic inputs (two), Video Out and a footswitch port.