This is a *wonderful* plugin and I'm quite glad it's already working with BP 1.5.
I have a client which asked for wiki space for each group and there's a number of plugins out there. This one is the best I've seen simply cause it doesn't break and has good styling. Wiki's however have features this doesn't, like author highlighting and [links to other pages via shortcodes]. PB Works has the behaviour they're expecting.
I realize this is a ton of work but I wanted to see how likely these changes are and how many other people are interested in using these features.