Hi Bernie,
I use UnrealBook now and also have GoodReader on my Ipads. I seldom use a Windows or Android device for much of anything. I still use Dan's vArranger and it runs only on Windows so I still keep a Windows laptop around. I have wondered what folks using Windows or Android systems were using. One thing I have noticed is the high price of the apps mentioned here. As you know Unrealbook was a whopping $4.00 as was GoodReader too.
Deane