Ease of Use features

·         Capacitive touchscreen support

·         Platform to enable multitouch

·         Touch controls throughout system (no need for stylus)

·         Consistent Navigation

·         Horizontal scroll bar replaces tabs (think settings>system>about screen)

·         Magnifier brings touch support to legacy applications

·         Simplified out-of-box experience with fewer steps

·         Drag and drop icons on Start Screen

IE Browser Performance

·         Page load time decreased

·         Memory management improved

·         Pan & flick gestures smoothed

·         Zoom & rotation speed increased

Quality and Customer Satisfaction features

·         Updated runtime tools (.NET CF 3.5, SQL CE 3.1)

·         Arabic read/write document support

·         Watson (error reporting) improvements and bug fixes

(via Mary J Foley on All About Microsoft)