Question about Affiliate Plugin for Multisite

I'm starting to put together in my mind a list of plugins I will need for a shopping Network site, Where Merchants can signup for a site and set up Marketpress, the new ad server plugin in, now looking into an Affiliate plug in so Merchants can have there own Affiliate program separately from the main Site can I have each site install this plugin for there own site?
If not then please move this to the request section and Please pass this post up the Flagpole so to speak :>.

EDITED: I just found this post
Its explains it a bit more then I did.
So I guess this post can be moved to the Request discussion.
Anyone else think this would be a nice addition to the plugins
+1 from me