BuddyPress.org

@sulley – on the flip side – with one company developing it, you have a single point of weakness. if they go under, the whole project disappears – not just one plugin.

However, I tend to agree with you: BuddyPress would definitely be a more attractive development platform if a solid company took more responsibility for specifying standard components, resourcing their development, ensuring stated deadlines were met, and supporting them.