The fine folks working on BuddyPress just released the first RC for BuddyPress 1.7:
BuddyPress 1.7 is going to be one of our most exciting releases to date. It comes packaged with the same theme compatibility that was introduced in bbPress 2.0, which means that BuddyPress will now work out-of-the-box with a majority of the WordPress themes available today.
Make sure you test this release candidate as much as you can because as you know, the 1.7 version is quite an upgrade. For more information, do check out the release post.