Test releases for OS X and Linux now available
R3 A33 Core (not view) for both Apple OS X and Linux (Fedora 2.6) have been uploaded. See RebDev chat #1627 for the gz distros. These are basically untested and I'm sure you'll find various bugs.
Note that if you're going to test R3 on CGI, you'll need to get-env your own CGI variables. But, it's easy to do, and actually just a bit faster because you can only fetch what you need.