I've thrown one story on Amazon's Kindle Direct Publishing system as an experiment and I rejected DRM. I'm not looking to make money off of the story, though, as much as I'm trying to build some name recognition prior to a novella I've got slated for a fall 2012 release. I could see things going very differently under other circumstances.
Anyone currently at play in the e-fields? Are you happy about this? Concerned? Disinterested? Watching and waiting?