Commenting on the Log Format Roadmap, Tim Bray laments the agony and confusion of dealing with multiple active versions of RSS, but Simon Willison's account of helping his girlfriend establish a feed for her site is a real-world demonstration of exactly why this is a problem.
On a related note, it's nice to see Six Apart, makers of Movable Type, publicly show support for this new format. The community is clearly behind this effort. We'd be stupid not to be.