I'm at a Mozilla "open house" sitting around a table with about 10 other bloggers. Lots of history is being discussed here; the 10th anniversary of Mozilla will be celebrated on Monday (Firefox 1 came out two years after Mozilla started). Check back on this post for practical tidbits from this meeting.
Mike Schroepfer, VP of engineering: Next beta of Firefox 3 will be beta 5. It comes out next week. Will be the last beta before release candidate 1, which is due for May. Firefox 3 should ship for real in June (or before, if possible).
Feature of Firefox 3: Will look like a native app on each platform: Windows, Mac, Linux. Less of the "Firefox look," more native. Of couse, will support skins so you can pick your favorite look. Most everything is in the same place, but the back button is about twice as big.
The "awesome bar:" This is what they call the new address entry field. It has very useful autofill and search, since "people are moving to search as a modality" of how they use the browser. It combines search with your history, and it's adaptive, based on what you historically click on. Tries to divine what you want even if the search term is ambiguous.