Good idea using a tablet PC for charts, lyrics, etc.... thought about it myself except.....
You have to use the stylus on all the ones I've ever seen. They don't respond to just finger touch, which means you would have to keep the stylus handy and pick it up to do anything on the screen, dang near impossible while you are playing.
Just a thought.... Think I'll consider an older version through Music 123.... juat need to talk to the boss and see what she says ......

Jeff