The only iPad app that allows Adobe DRM is the iBooks app. Overdrive providing an app is pretty exciting.
Edited to add: I'm sorry but I was wrong. Epubbed books in iBookstore are FairPlay DRM'ed. Not Adobe DRM. Txtr App uses Adobe DRM and that was allowed in the App Store (it's iPhone only right now).
Last edited by da_jane; 05-19-2010 at 10:57 PM.
Reason: Because I was wrong