I was wondering if anyone does revenue sharing with their b2 site - specifically with Adsense.

I was all prepared to go with wordpress multiuser for a new project when I came across b2. There's a lot that I like about b2, and after playing with it a little, I would consider changing my plans, but my only problem is the ability to do revenue sharing with the bloggers is a MUST for me. I have searched as best I could here - through the plugins and forums, but I can't even find a mention of it. ... Am I just missing it?

If no plugin exists, I would be willing to pay for one - as long as it isn't too expensive. Any ideas how much it would cost to get such a plugin/hack built? And if I wanted to advertise for one, where would be the best place?

Thanks for any suggestions.