Transferring stuff into the iPad requires iTunes which does not run on Linux. no real biggie, however, to get my music into Songsheet Pro on the iPad, I have to first copy the PDF into the "Books" program and then export it to songsheet Pro with a pile of adjustments to suite.
Whoa, I don't like that at all!
I want to keep things simple, which means I can just dump whatever I have (PDFs, Text, JPEGs, mp3s, WMAs, etc..) on my Windows laptop onto my tablet.
If I'm forced to jump through Apple hoops just to do simple stuff like that, then I will be most unhappy.