After the recent release of FeedIcons.com we are seeing a push towards standardizing feeds in general. Microsoft is joining the group as well by using the new icon that will hopefully become the standard icon for feeds.
Now what we need is a unified feed standard. I'm not talking about getting rid of Atom and RSS, just giving them a set of development standards to work from. Colin's explanation and theory is much more elegant and detailed than what I could write here. digg it if you like it.