Want to try Android 2.3 Gingerbread on your Nexus One before the official version is released? I’ve been using it for couple days and it’s pretty stable, highly recommended over the stock 2.2.
Still using Android 2.2? Even with Google’s latest Android 2.2.1 update, you are probably not up to speed unless you’ve got the Android 2.3 Gingerbread ROM. Actually there’s a bunch out there now but the one I recommend to install on your rooted Nexus One is the LeoGingerbread ROM.