good review SN.

the highlights in my view:
1. inclusion of tabs finally (good for users who just can't live without IE)
2. RSS support (not implemented as live bookmark feature in firefox but something completely different. its good as well as bad. you decide )
3. phishing check for increased security (though if enabled, slows down the browsing speed)
4. an addon-free lite version of IE (you can find that under Programs >> Accessories >> System Tools)

Its definitely an improvement over v6 but not quite upto the mark. Its just a beta and as a result, we can expect better things soon.