I've been playing with the Nexus One now for a couple of days. I didn't want to rush to make a post about it as soon as I got it for I wanted to wait until the excitement of a new gadget wore off a bit - takes more than one week! I have to say that I am highly impressed with not only the Nexus One, but the Android 2.1 operating system. The phone is very fast and am amazed at just how many options I now have compared to the iPhone.
I will have to admit, Android is not as user friendly as the iPhone OS. The first time you use an iPhone, you can learn to use at least 80 to 90 percent of the available features. When using the Android OS, and especially coming from an iPhone, it takes a significant amount of time to really learn all the OS has to offer. Now that's not to say that you can't use it very generally right off the bat. Things like setting the incoming text messages to vibrate can take a few minutes to find - hint: that's a application specific setting and not an OS setting.
The virtual keyboard on the Nexus One is another feature that takes even more to get used to when coming from the iPhone OS. I did find myself not being as efficient on it as I was on the iPhone's keyboard. I even getting better with practice and there are keyboard replacement software that makes this even easier such as ThickButtons and Swype - although I'm still looking for a beta version of Swype to install. Overall, though, it's not too much of an issue for me and has not really caused me any headaches.
Battery life on the Nexus One has been very comparable to the iPhone 3G, with the Nexus One having a longer charge by about an hour. I am a heavy user of the phone and use a lot of data during the day. I have tried streaming music off last.fm, reading tweets and answering text messages during the course of two hours without ever connecting to WI-FI and found that not too much more of the battery was drained than I expected. The first half day that I used it, I spent downloading a lot of applications, steaming music and trying out different twitter apps. The battery lasted about a good 7 hours before I had to charge it. For my usage, I think that's really good.
I will have to update the blog with more of my experiences as I use it even more. Feel free to ask any questions about the phone or if there's anything in particular you'd like for me to cover.