Microsoft Surface represents the next generation of customer digital interaction. There's no mouse or keyboard, the product employs a camera-based vision system that lets users grab digital content with their hands and move information between objects with simple gestures and touches.
Here's a video from CrunchGear that shows off new features:
Service Pack 1 feature highlights:
Application Development
API enhancements, WFP library and menu controls
Stress testing tool
128-big identity tag resources.
New platform capabilities
Enabling users to quickly switch between applications using tagged object routing
Background service application support.
Improved User Interface
Improved "Access Points"
Single application mode
Touch/contact feedback and visualization.
Plus
Localized end-user and administrative interface in available counties
New calibration guides removing need for external display during configuration