I currently run 2.x on a FreeBSD system, and require FreeBSD support to upgrade to 3.x. I saw that it was mentioned in the release notes that this was going to be completed in the "near future," but I'd really like for that near future to be ASAP.
If you need a test-bed, I can happily provide a FreeBSD 9.0 x64 jail for the Centova team to use, if desired.