Well, a screenshot worths a thousand words...

http://tw.fancool.googlepages.com/chrome3.gif

According to Google, there is nothing too new in this version of Google Chrome, the <video> tag is now supported, though.

Of course there's nothing new, since the version number has been changed immediately after the first stable version of Google Chrome 2 has been released.

It has a ui for about:network
http://lh3.ggpht.com/_9Q0q2eaQVJU/Sh5LhtO2GqI/AAAAAAAAASs/qeLS4uCOTNY/s720/about-network.png

and more developer's tools

http://lh3.ggpht.com/_9Q0q2eaQVJU/Sh5LhvKqbHI/AAAAAAAAASw/vhLegooafdA/s400/developer%20tools.png

Facebook and Google Chrome: Bookmarklets should be installed!!

http://lh6.ggpht.com/_9Q0q2eaQVJU/Sh5R8GLL22I/AAAAAAAAAS0/QOcgDLu1r8A/s720/1.png

which is more related to this work-around:
http://dev.chromium.org/user-experience/bookmarklets

however, i see no "drop-down arrow" on the addressbar for bookmarklets which I could say, it wasn't really installed. :]

sorry, my mistake on the last one.

JEShack:
   The developer tools you mentioned has been available since v2.0.181.1...