From my enquiries, I believe VaultPress only backs up the regular WordPress tables (i.e. not BuddyPress’).
That was belief as well, only appears to backup wp prefix tables and they do mention not being able to back up BP at this time, I think they may intend to when the basic service is bedded in fully.
Thanks Paul and hnla.
I guess that means they could extend it to BP if they wanted to – they’re probably just not yet ready to work out what they would charge; Ma.tt has stated that the lack of support for MS is largely a billing issue. Hopefully they’ll cover the full gamut soon after they come out of beta and have a better idea of what their actual costs are. VaultPress would certainly be a no-brainer for the owner of any active BP site.