BAM Reader now in iTunes
As you can probably guess, it’s based on the Bluefire Reader. If you’re not familiar with Bluefire, it’s the app that has replaced Stanza as the touchstone reading app on iOS.
It doesn’t have quite as many formatting options, but it makes up for that by supporting Adobe DE DRM. You can buy an ebook from any ebookstore (including B&N) and read it on the Bluefire Reader.