Don, there is a way to capture and convert the Flash sheet music into the PDF file format. When you print the Flash sheet music, hyar choose a PDF printer driver instead of your hardware printer. Then the PDF driver will "print" or rather convert the music into a PDF file. I use the free version of PDF reDirect
http://www.exp-systems.com/. It is very handy. Whatever you can print out can be converted into PDF. It will even merge multiple PDF files into one. If you want to print out or make a PDF file from just a few pages of a PDF songbook, once again this PDF driver will allow you to do so.
Of course, once you have PDFs in your hands, any computers or tablets can easily handle them.
Chris
PS: I am strongly biased against Apple as a company and their products for various reasons, but I use the iPad for different tasks. If I were just dealing with PDFs on a tablet, I would get something like a Samsung tablet. A lot more machine for much less money.