Wow! Everyday its good to see more and more of the Google Nexus One.  While I posted a video earlier this one is much more in depth and shows off some key features such as

• Interact-able animated backgrounds
• Picture gallery
• Watching a movie
• The camera in both picture and movie mode with seamless integration of the gallery
• Market place
• Google Maps
• YouTube application

One of the most important things to take away is that the device is lightning quick.  It never once stalls and Android looks amazing. I simply cant wait for this device to release!

No official source on this.