About the only ApachCon talk I paid attention to was Doug MacEachern on mod_perl 2.0. A lot of the cool stuff that mod_perl 2.0 can do is based on the cool stuff that Apache 2.0 can do, so when I got home I went back and read up on the Apache 2.0 feature list.
Wow! Once again the Apache team show that they're some of the soundest software designers in the world. I'll go through what I think are the coolest bits of Apache 2.0:
Apache 2.0 isn't out yet, of course. It's in beta now, and will probably come out during the US summer (probably late summer, maybe even fall -- one of the upsides to being an open source project is that you don't have to live by artificial mangement-imposed deadlines). You can download previews and betas from the Apache website, and alphas of mod_perl 2.0 from Doug's s33kr1t site.
And no Nat journal would be complete without a plug for the Open Source Convention. We have a mod_perl track which will feature Doug talking about mod_perl 2.0, and an Apache track with 2.0 talks and tutorials.