[Jane12]

I agree there are too many flavors of DRM, and the world did not need B&N to introduce yet another variety.

But I do appreciate the simplicity of B&N's version of Adobe DRM. I don't like having to authorize my devices with Adobe, and if you have multiple devices or have to re-authorize a device for some reason, you run the risk of the dreaded "too many activations/authorizations" error. And then you have to contact Adobe to reset your authorizations, blah blah blah. With B&N's Adobe DRM, all you need is your username+password and you can open your book on any device that reads B&N's Adobe DRM. I really like that.

Also, B&N lets you read books from Sony and Kobo on the Nook. While I can understand why Sony (and Kobo?) wouldn't reciprocate, I still find it disappointing that they don't.

Of course, the real problem is DRM, and the real solution would be to get rid of DRM in the first place :-)