In reply to the tablet PC idea - I followed that idea through before buying an MPP. The main question became - what format do you use? Short of writing software I couldn't find anything that would give me the page-turning touch interface of the MPP. Also the dedicated editing features of the MPP software makes it very convenient for sheet music... nothing else would allow you to erase and replace music notes without erasing the staff lines like the MPP can. However, now that I HAVE the MPP software, it might be more feasible to move to a touchpad computer in the future and ebay the MPP away.

Thanks for your help frankieve... I look forward to seeing what you come up with.