Forum Nokia has put up a detailed PDF document, detailing every technical and UI feature of the upcoming next-gen browser from Nokia.

Some New and Interesting features are:

Download Manager
Adaptive Bookmarks [Set of boomarks created from browsing history]
Popup Blocking
Progress Bar
Mouse Pointer-like navigation [Desktop Experience]
Play Embedded Audio Content via an Audio Plugin [Plays sounds embedded in a webpage]
URL Auto Complete
VPN access to Corporate Intranet
WLAN browsing
File Uploading from mobile phone to an HTTP Server
JavaScript 1.5 Support
RSS Support

I am impressed by the new browser. Now only if they would introduce a version of this browser for older S60 v1.2 smartphones. But I guess that isnt possible due to memory constraints on older devices.