Well, I got it last night, my boyfriend took it to the store near his work and exchanged the Evo out for me. I have to say, I like this Nexus MUCH more!! Right off the bat, I could tell the screen was better.. brighter and more vivid colors. The UI is definitely more 'clean' and simple, and I like that I can have a clean slate to customize and play with. Everything seems faster. I've been glued to it since the moment I got it, installing apps and customizing my screens. I already ordered the case and screen protectors, but in the meanwhile, I'll just have to be very careful with it and I've left the original plastic film on the back of it on.
I am new to the Android/smart phone scene, because after losing my last 2 phones, I got a crappy pre-paid one to punish myself. My boyfriend got me an Evo (the same phone he has) as a birthday gift not too long ago and said I could swap it out in 30 days. So I did some serious researching, and with the help of people on this forum, choosing the Nexus S made my decision easier.
So after letting me play with the phone for a while, my boyfriend comes into the room and said he wanted to check my phone out, so I let him mess around with it. Afterwards, he asked me if I was sure I wanted to keep this phone or get something different. I told him I liked this phone very much, and he just said "But the screen is smaller than the Evo." Then I just smirked and said "I don't care. I've been reading the forums and even if the screen is smaller, everything else about it is better." I think he may have gotten a little bit jealous! He just said that he needed the bigger screen because he has fat fingers and needs it to type. ha! I won't rub it in his face though, he probably wouldn't care about the differences anyways.