Originally Posted by charmian
What's the point of even using Adobe's DRM if you can't use the books on other ereaders? (Assuming that this is indeed the case: I keep on hearing conflicting things)
The logic of supporting ADEPT on Nooks was for library books. And as insurance in case ADEPT really became a defacto standard. Odds are, if B&N had chosen not to support library ebooks, they never would have signed up with Adobe, as their entire approach has always been based on their hardware driving users to their ebookstore. And on brand loyalty. It worked, too.
Amazon's approach has *always* been primarily based on their ebookstore selling the hardware. (The K1 was kludgy, ugly, and ergonomically sub-par. It still sold because of whispernet and the bookstore.) Since then they've refined the hardware but the prime attraction for most customers remains the ebookstore.