This is BenQ S6, an UMPC with a nice UI, good styling and unique features such as shake-to-overview and auto-rotation.
The S6 is powered by an Intel Atom 800MHz processor, 512MB RAM and 4GB of flash storage. It supports WiFi 802.11b/g, GPS and optional 3G connectivity. It will be available in Europe through a mobile carrier with a data contract.
UMPCPortal shows us a video preview: