Yesterday, Google updated the Nexus One's YouTube profile to include the first part in a series of short films that document its creation.  This five-part series will give the world a behind-the-scenes look at handset development and refinement that went into the Google-HTC partnership bringing the Nexus One to life.  Each consecutive short will roll out over these next four days, wrapping up on February 8th.  Check out the Nexus One YouTube channel as parts two through five become available.