The interface is entirely text and music-based -- musicians, if you can call them that, scan an instrument name on the page before sliding over to the notes, which can be played back at different pitches by moving the reader vertically along the line.
Engadget reports that it will also be also include VoIP and e-reader functionality as well as include a "fridge" app that allows family members to scribble notes on it, functionality seen in the far larger and pricier PC-based HP TouchSmart desktop PCs.