I've added tentative Atom 1.0 support into the dev stream of updates in BottomFeeder 3.9. I'm not going to promote it to the non-dev stream until one of two things happens:

• The format starts getting used "in the wild" (which happened with 0.3)
• The format gets stamped final

In the meantime, the dev stream only support should be considered tentative - and I'd appreciate any bug reports from people who see it (Atom 1.0) being used.