Is there a way to advance pages (lead sheets) via a foot pedal? What about searching for a song? Would you have to pick it up and type something or could you use a mouse to somehow scroll through a list or something?

The ideal situation would be being able to use a footswitch to advance pages and also to search. If you have to pick it up, the audience seeing you do that... not so good. (If using an arranger, you could kind of hide behind it a bit. If playing an acoustic guitar such as I often do, there isn't anything to block the view.)

If the Ipad can do these things, it would be a fab addition for me. I have long wanted to have a "teleprompter" that nobody would really know is there? As for guitar gigs, perhaps there is a mic stand gizmo. The Ipad is not so big that it would look terrible and it wouldn't hide much of you... a good thing for connection to the audience.

One last thing... for any footswitch device that exists, are any wireless?