I've finally managed to pull Max Martin and me out of the proverbial work cycle we're in - we plan to release the Beta on the 14th Dec 2007.
"Beta" means we think this version is stable and ready, and need final confirmation from the community before adding a few more modules and tweaks, and calling it a final.
There will be 2 releases of BT3 - a ~700 mb iso file, and a ~1 GB USB stick image. Compiz will NOT be included in the stock 700 mb bt3 iso. We have to fight for each MB on the iso...and compiz is far from being useful in a penetration test environment. We DO however plan to have compiz modules for download separately, and to add them to the 1 GB distribution.