The next feature up for grabs is BuddyPress’s Theme compatibility. #3741 You’ve got to see it to believe how good it works.
For a quick v1, I’ve literally coped templates directly from bp-default, and tweaked them to work.
Neither theme has any modifications done to them. No child themes, no custom CSS, it’s just BuddyPress filling things in. For release, we’d polish everything up and trim out as much markup and CSS as possible.
Please give this patch some love. It’s pretty large, and could really use some testing.