I noticed that the new buddypress themes are out. Great work!
I ran into an issue though. I use multi-site plugin, and the BP is not running in the main blog. However, your themes seem to assume that it does, and thus /blogs /groups etc. end up redirected under the main blog.
If BP is not run in the root blog, it's blog id is set in wp-config.php with the variable BP_ROOT_BLOG.
The buddypress default theme doesn't have this issue.
I already almost used the corporate theme...