The fact that Apple's MobileMe icon installs itself on my menu bar despite the fact I have no intention of ever using it was starting to annoy me. There's no obvious way of removing the icon or uninstalling the app I could find anywhere.
However, thanks to this post, it turns out to be really easy to remove it.
Simple hold CMD, and drag and drop the mobile me icon off the menu bar. It disappears in a puff of smoke never to be seen again. Hurrah!