There are so many different Android phones, and that's been one of the reasons for Android's success. Different form factors, different carriers, even in the U.S. So how do you find out about all them? Google has an app, er, sorry, a web site for that.
In fact, the Google Phone Gallery also shows what you do with a web page that's no longer being used. It used to be the site you would go to if you wanted to by an HTC Nexus One, the late, lamented Google Phone (http://www.google.com/phone
It's an interesting way to keep up with the latest and greatest Android phones, as it can be sorted either alphabetically or by date. You can also select and compare up to three phones, and filter by manufacturer.
It's a little embarrassing for the Motorola Charm to be the phone at the top of the list when sorted in default mode (date of release), but hey, soon, that will be replaced by the G2, right?