Re: BP widgets in subblogs
Yes BP is designed to work on $blog_id = 1 but there is no reason you can’t copy the widgets and create your own.
Perhaps in future versions of BuddyPress, you will be able to set where you want BuddyPress to be hosted along with the ability to set widgets as global or single blog.
(we also would like to let our future users use some of the widgets – but are working on a few other bits and pieces atm – I might create a patch when I free up some time)
I have searched the forums to answer this question with no success – but I hope I am not repeating a topic.
I really like everything about BuddyPress and its users – social networking for social people, I think I speak for everybody when I say ‘ask your question anyway and someone will try and answer’ 
