I think version 3.1 should work. All you really need the software to do is convert from .png or .pdf format to Freehand format so that you can make the sheets work on the MPP. After you convert to Freehand format you just copy the file from the computer to a USB drive and move it to the MPP.

I had been using Music Reader Windows software to display sheets on my 13 inch tablet and the display is a lot crisper. But have recently gone back to the MPP because it seems to fit my needs better. As you know, I have several MPP's that I use with students.

I think most of the guys on this forum are using software apps for their tablets. To do that you would need to covert your sheets back to PDF format for the tablet.