[tjrob]

The problem I have had is on a piano at a gig, where the music stand on the piano does not hold the tablet reliably (or not at all in one case). That's why I keep a roll of blue painter's tape in my kit -- it's low-residue but holds well enough. More often than the tablet, I need the tape to keep the pedals from sliding around on the floor, especially the damper pedal of an electric piano.

BTW the Hannspree 13.3" tablet is great -- I now have two of them (for backup).