I just finished a hurried hacking session where I am now publishing an atom feed of the latest deals from the deal viewer. I think it works. The Atom RFC is great. It tells you everything you need to know and once you've implemented the MUSTs, it all just works and feed readers know just what to do. Actually most of them more or less still knew what to do when it was in its half-correct state but now they really know what to do. I don't know if this will be useful to anyone, and it doesn't support filtering (yet), but either way I now drop this new tool in your laps.
One thing that threw me off was the fact that so many deals were showing up for a given updated date. My bot gives all of the deals it finds in one go the same timestamp, so it's not a surprise to see a few with the same date. But this was 40 or 50. Oh, right, Black Friday is this Friday. This is go time for deals sites. I guess I shouldn't be so cavalier with my changes. ;-)