As an RSS user, I would love an RSS of the main page content, one entry per story over 5.5 is a perfectly reasonable baseline.
Also: It'd be great if you had a feed tag in your HTML head, so RSS readers could pick it up straight out of your homepage URL instead of needing to manually hunt for the right RSS link.
100% the current implementation is "RSS as would be desired by newsletter lovers", but there is already the newsletter for that. If I want batching or similar my reader will handle that, I think it would be best just to have items as they happen appear on the feed.