I think it's great.
From the "constructive feedback" department, I think it'd be even more useful if it only had one entry per topic, instead of one per post. What I mean is, right now, my RSS feed shows 5 posts from the "Intellectual Property" thread and a few posts from some other threads. I'd rather it would show the last 10 updated *topics* in order, and put the most recent post in that thread in the description field.
Also, I notice the username of the poster is at the end of the "description" field, I'd prefer it at the beginning, like "userid: blah blah blah".
Otherwise, I like it a lot and will make extensive use of it.