LazyWeb request: RSS readership tracking

Can someone please build what Brian Peddle describes here: a tool for generating stats of RSS syndication feed readership?

I have no idea how many people read this Weblog, because much of the
audience seems to come via the RSS feed.  I have no doubt this
will become more common in the future.  I hardly read any blogs
that don’t offer syndication feeds, because they are so much more
efficient for skimming lots of different sites.  Dave, Scott, Dave, or BenMenAnil, you listening?