Google recently ended all sales of the Google Nexus One, meaning the average consumer would be hard pressed to find an unlocked Nexus One device for sale. At the time, however, Google announced it would continue to sell Nexus One’s to registered developers, so developers needing a clean Android device could opt in purchasing the Nexus One.
As of today, Google is going to begin shipping Nexus One devices to registered developers. Simply log-into your Android Developer account and click on the Development Phones link. Keep in mind the cost of the unlocked phone is $529. The N1 will ship with Android 2.1, but upon turning on the phone, users will be prompted to download Android 2.2.
Read [Android Developers]