Well, I was one of those dorks in line early for the Galaxy Nexus. I upgraded my Bionic to it and it is just AWESOME. Ice cream sandwitch is just amazing, super easy to use, and really, really pretty. My emails look so clean and easy to read. Contacts are a joy to play around with. I have lots on new widgets including a to do list and calendar widget that has been redone and is very functional. I just LOVE the new phone. I happen to like big phones (and big screens) so it's definitely right for me. I can see that if you like iPhone sized phones, this one will be a bit too big. But it is actually lighter than the new iPhone (we have both) and thinner. Also, all the menu buttons are on the screen so there is no physicial button to push. It makes it very easy to navigate. And the phone is super fast. Battery life is about the same as other 4G phones (about 1 daysworth) so not amazing but not unreasoable. At one point, I had the Thunderbolt and I only got about 1/2 day of battery out of it so I returned it. It is definitely not that bad. As for size, it's very slightly larger than my beloved Droid X, so I don't notice much of a difference. BUT the screen space is great and I can read forums and articles much easier on it than my previous phones.
By the way, the camera on the new iphone is amazing. The Gnex is ok (it's fast) but not as detailed or sharp). The cameras on the Motorola phones (droid x, bionic, etc) are horrible! Not sure if that matters to someone. But if you are looking to take indoor pix, test out each phone first because that's really where you can tell just how lousy the cameras on some of these phones are!
Katherine