As much as I think Atom is a waste of time, end users shouldn't have to care - that's why BottomFeeder supports the format (both 0.2 and 0.3 - change your upgrade path to 'dev' in order to get proper support for 0.3). So I was a little surprised to see Scoble complain that Radio still doesn't support the format. That's just silly. Atom is a clone of RSS with different tag names; adding support to a tool that already handles RSS is trivial (it took me less than an hour for Bf). As I recall, I only needed a couple of slight additions to the domain model (the additional dates, for instance) - almost everything was a simple mapping issue....