Along with Android 2.2 comes a new version of the Android Market. While we still wish something could be done in regards to content (the Wild West still is in effect), Google's begun to at least clean up the interface a bit. Comments are now in their own tab -- no more scrolling down to see just one or two.
You also can see here the "Allow automatic updating" checkbox -- hit it and the app will update on its own, in the background. No muss, no fuss.
(Thanks Russ! Find a cool new feature in Froyo and want to tell the world about it? E-mail us here and we'll make you famous!)