What Froyo has that's great is over-the-air download & built-in intents-over-the-air (e.g., send a URL or a map to your phone, something I've longed for on the iPhone since forever; I guess someone should make an app for that plus a browser extension).
It'll be interesting to see if Apple can shift quickly enough in the two weeks before WWDC to address some of the remaining advantages that Android has over iPhone OS. I suspect not. They're known for establishing a course and pretty much following it inexorably.