Hi Ed,
That is great, but the set it and forget it feeds don't always work. Just like a good optimized website, the product feeds need to be individually optimized as well. Data feed optimization is a science in itself. Unless you have named your products properly for these and have very keyword rich descriptions, its going to be essential to optimize these feeds to get the best results. Of course many of the feeds are pay per click, so that won't matter as much, but for something like Google's which is free, it is a must to know how to optimize for it.
I know this as I end up doing manual data feed optimization for a few of my clients.
Having said that, it's still a great feature that you guys are adding in. Good work!
JLK