Opera has been one of most advance browsers. They were the first who initiated speed dialing and other features that other browsers have build in.
Check out the new opera browser goodies http://www.opera.com/portal/startup/
They have new features like
file sharing: users can share files
music sharing: users can share music
and share photo for users sharing photos on opera community
They also have a new feature called turbo browsing which enhances the speed of your browsing.
To know more visit opera.com and http://www.opera.com/portal/startup/