Lucky me, I got a Nexus S on Friday. Very nice upgrade from my previous phone, absolutely loving the speed and playing with all the toys. I was surprised it didn't have a microSD slot but I've never used more than a couple GB and the Nexus S does have 16GB storage so it's not likely to be a problem. So far I've used the front-facing camera for a quick self-portrait and the regular (rear-facing) one just once.
I've blown a lot of time the past couple days on Angry Birds and a few other games on the phone. Really looking forward to seeing Dungeon Defenders come out next week. I heard the phrase "tower defense online role-playing game" in the preview video. Maybe I can play it on the flight to Windsor. If it really does need the 400MB they claim then I could fill up that storage space before the phone gets old.
The portable WiFi hotspot came in handy at the coffee shop. They offer WiFi but it's unsecured. So instead of using coffee shop WiFi, I shared my phone's data connection using the portable WiFi hotspot and WPA2 for a secure connection. Of course that means my data goes over 3G and I'm relying on whatever security model 3G uses but it's a step up from open WiFi. Maybe tethering would have worked as well but WiFi is easier to set up and understand for me.
I'm also curious about the NFC reader in the Nexus S and whether it's possible to get a hold of some NFC tags somewhere. As I understand it, NFC tags should be small and easy to embed in stickers & posters. I'm hoping they can also be found for cheap soon at Frye's or Think Geek. Of course I expect NFC support to show up any day in the Android Tricorder.