Re: General Questions
Kind of a long story, but more cliffnotes…
BuddyPress is a social networking plugin for WordPress, that actually comes bundled with bbPress inside of it to create group discussion forums.
bbPress has always been a stand-alone platform (like WordPress) but is being turned into a plugin for WordPress to make integration as seamless as possible. So right now, there are two distinctly separate versions of bbPress, stand-alone and plugin.
As far as I know there isn’t a migration script between SMF and bbPress, but I could be wrong. There most likely is not one for the bbPress plugin since it hasn’t been publicly released yet.
Documentation, is limited. 
There is almost none on the plugin so far, but there will be once it’s released and in the wild. We’ll put some documentation up here at bbpress.org to help answer all of these kinds of questions easier.
