RFC 4287, the AtomSyndication Format, is now available in old-school IETF plain textformat. So, no excuses for not supporting Atom 1.0 -- thestandard is not only done, it's got an IETF number and everything.
Some fun RFC numerology: 4287 is a single-transpositionpermutation of my office phone extension. It's also the starcatalog number for Alkes Crateris, the primary star in theconstellation Crater (The Cup). Clearly Atom is the Grail. Or maybe my phone is.