I'm a long-time user of free/open source software, and write various things for both fun and profit. I don't take myself all that seriously and I do all of my own stunts.
You can find me at these fine establishments on the web: Open Source Musings, The Monday Kickoff, Weekly Musings. and The Plain Text Project.
Authored Comments
You're such a nerd, my friend! :-)
As far as I know, they can't.
I tested these apps with a few ebooks (DRM-protected Adobe EPUBs) that I bought from Kobo. With those books, I removed the DRM using a plugin for Calibre before opening them in the apps.