Originally Posted by cfrizz
The Nook supports only THEIR version of drm Epub, so you can only access it via pc or the Nook.
I bought one of their books and was unable to transfer it to my Adobe Digital Editions to open it so that I could transfer it to my Sony reader.
If she wants to be able to transfer her books to other readers she needs to stay away from the Nook, Kindle & Apple otherwise she will be permanently tied to their stores.
No it doesn't it ALSO supports Adobe's drm as well as their own, which by the way is being adopted by Adobe too. So in the future other devices will be compatable with B&N's drm. But you can buy any epub that has ADE drm and use it on the Nook. What you can't do is buy an epub from B&N like you did and use it on other devices, at least not currently, not until Adobe updates their version of ADE.