Bored with the stock performance of your Nexus One? Fancy some cyanogen-style fun with a custom ROM? The arch-modder has released CyanogenMod 5.0 for Nexus One (5.0-beta4), a new package of updates that's based on the latest AOSP code.
The new ROM can be used with or without Google's apps, and comes with various enhancements preboiled in. USB tethering is supported, as are FLAC audio files, multitouch support in the browser (with broader support on the way), various enhancements to the phone and contacts apps, and even a nifty hack that saves 40MB on data.
You can download the new cyanogen ROM here