Another welcome feature uncovered by many of you in Android 2.2 is the ability to work in apps through 270 degrees of rotation. That is, if you turn the phone to the landscape position to the left, it'll rotate. And it'll rotate to the right now, as well.
But, wait, there's more. The car app has gotten smarter. So when you're using the car dock and need to pull up a contact, you don't have to turn the phone back to portrait (or worse, tilt your head) just to find whom you're looking for. We'd prefer that the home screen rotate, too, but custom Froyo ROMs will take care of that soon enough.
(Thanks, Mike B! Though try to turn your caps lock off, m'kay? :) 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!)