Re: Custom post types and Buddypress — should I wait for 1.3?
There isn’t really any support built into BP for custom pay types, but supporting them is no different from supporting other kinds of custom content in BP. See the BuddyPress Skeleton Component for some guidance on integrating custom content into BP navigation, etc.
In the next couple weeks I might whip up a new plugin to provide a framework for custom post type support in BP (front end editing, integration into nav menus, etc). I’ve had to do stuff like this for a couple clients in the past few months and I think I have a sense of some good strategies.