[isaacgreenspan]

Though I hesitate to say this out loud, it is possible to integrate bbPress 0.9.0.2 with WordPress 2.6.x (I have a site running the two and logins to one part work in the other, cookies are properly set and cleaned up, etc.), BUT it requires plugins to both bbPress and WordPress (or, alternately, modification of core code) and I’d venture to guess that it might substantially weaken the cookie security introduced in WP2.6. If anyone is desperately interested, I can share details, but it’s messy.