O'Reilly epubs doesn't work
I do own some oreilly.com epubs. They offer different formats but for the JetBook Color I did want to use epubs (mobi doesn't work really well).
That doesn't work. If you're device isn't Digital Editions registered it complains that it needs to be registered. If you do that (totally senseless because it's DRM less) it says 'Can't open file'.
What's going on? Did somebody else try that out? You might even try it out with some of the free O'Reilly E-Books on their site.