Originally Posted by BlueMonkey
In their official blog (German)
they have pointed out that at the moment only DRMed EPUBs and PDFs bought from their own store work right away with the app. For DRMed content from other sources you seem to need a little work around which they promised to explain as soon as possible. I will forward and translate this here as soon as they publish the instructions.
Buzzkill! I was pretty excited about this. I expect that what you have to do though is authorize your device with the ADE software before trying to load ADE books. Has anyone tried this?