Finally, there's a solution to using Sony Ebooks, which are Adobe DRM-protected, on your iPad. I have been lookig for months and stumbled on it yesterday. And it's free. Set up a free account for iFlow Reader on the computer than has your Sony e-books in theepub format stored on it. (
www.iFlowReader.com.) Download the app for the iPad from the iTunes store. Then, use the import feature of iFlowReader on the compueter where the books are stored. It will absolutely import even DRM-protected epubs purchased rtom the Sony store!! Then just login to the app on your iPad and sync. Voila: all of your books are ready to be downloaded. It's a miracle! iFlow Reader also has a store from which you can purchase more books; it seems to be well stocked and reasonably priced. Enjoy!