The Nexus S is built by Samsung, and will be a "pure Google" experience, unlocked and "vanilla," with no special user interface layers.
Google says the smartphone will have a 4-inch "Contour Display designed to fit comfortably in the palm of your hand and along the side of your face."
The smartphone runs on a 1GHz Hummingbird processor, has 16GB internal memory, standard and front-side cameras and NFC (near field communication) hardware.
Google says "NFC is a fast, versatile short-range wireless technology that can be embedded in all kinds of everyday objects like movie posters, stickers and t-shirts."
Coming with Android 2.3 are "user interface refinements, NFC support, a new keyboard and text selection tool, Internet (VoIP/SIP) calling, improved copy/paste functionality and gyroscope sensor support."
The phone will be available through T-Mobile and Best Buy starting on December 16th.