Working on any product which is not yet released and developed by hackers all over the world ;) gives you sweet surprises every now and then ;).
I have already mentioned how the form elements are made better in FF3.0 in http://sp2hari.blogspot.com/2007/06/firefox-3-ui-rocks.html
The next surprise is Bookmarks ,FTP browsing and Downloads window :-) :).
Check out the screenshot for yourself
The favicon for the ftp is cute :-).
Next one is the way bookmarks are added. Just like starring a mail in Gmail.
Check this screenshot. You can see a star there right in the Location bar right?
Click that once and the link is bookmarked :).
Next time you click it, you get bookmark options :)
Finally, the downloads window is more colorful now, with some new images :)
The search in the downloads is a cool feature :)
Hmmm, these are some of the features which i could notice while testing firefox. Not sure how much more is there :-). Really firefox 3 is going to rock :)