So, what is new with the new iPad?
Retina Display 4x more pixels than iPad 2, sharper text, richer colors
A5X chip with quad-core graphics
iSight camera for 5-megapixel picture and 1080p HD video
Connect up to 4G LTE
Talking instead of typing with voice Dictation
See the full feature list here: http://www.apple.com/ipad/features/
See the iPad2 comparison here: http://www.apple.com/ipad/compare/