The Windows 8 Engineering Team blog has a great blog on IE10 and show what's new in browsing whilst in a Metro environment:
Definitely worth a read.....
Link Removed
browsingengine
charms
consumer preview
desktop experience
hardware acceleration
html5
ie10
immersive browsing
internet explorer
metro style
mobile devices
online privacy
security
site interaction
touch interface
user experience
web browsing
web standards
windows 8