I already had an account with bookstrand and had a few books I had purchased. I downloaded their app from google play. When I opened the app, I had to sign in with my bookstrand login. After I did this, all my purchased books plus the 12 app only books showed up. When I clicked on an app only book, it came up a page all about the book with an epub download button and a mobi download button. I hit the epub download button and after the book downloaded, it opened in my moonreader app.
The bookstrand is not a reading app, but a download front for their books. I clicked on each of the 12 app only books and hit the epub download for them.
After I did this, I hooked my phone up to my computer and searched until I found the bookstrand folder in my phone and there were the 12 books. It was a simple matter to copy them to a folder I made on my computer "bookstrand books". From there, I just added the book to calibre from this folder.
Hope that helps.
(Edited): All of these appear to be Drm free as well.
Last edited by 3dusty; 01-26-2013 at 06:20 PM.