Micropersuasion on the standard feed button: "Now that Mozilla and Microsoft have standardized on this icon, I see little need to use the old XML or RSS orange buttons any longer. One reason is that this icon is how the coming wave of new RSS users will recognize feeds. Another is that it's truly global. The symbol works in every language."
It's like the Red Cross, but for Feeds...
In response to an eminently sensible comment from Wayne, here's the image, familiar to anyone who got into last week's couple of posts about live bookmarks: