DRM free -- absolutely where possible (i.e. we can't on google play, etc, but yes where we can i.e. digital subs from our own site). DRM is horrible and we want as little part in it as possible. For your other questions, I'm just answering them elsewhere in the thread.
I have several O'Reilly epubs that I bought on Google Play that are not crippled with DRM. They are sold as individual apps and include an epub reader.
We hope to be on the Google Play Magazine store, that means DRM.
We hope to publish as an app where we can go without DRM (personally, I'd like that app to be available for Cyanogenmod as well). However, this may be a little further down the line.
Just to reiterate, if we can make it DRM-free in a particular store-front, we will.
