Google has released a video series working around how Nexus One came into being. These videos highlight the thought process and work done before the final product was shipped for the consumers. I must say that Google has been really getting into creating the buzz around how valuable their first ever device is (of course made by HTC).
For now, three videos have been released so far, I will add more videos as they are released. All credits are to Google for the below videos.
Episode 1: Concept and Design
Episode 2: Display and 3D Framework
Episode 3: Testing
Episode 4: Manufacturing