Chrome for Android. Finally.
functionsource.com
functionsource.com
Trying to 'sync' extensions between two radically different apps probably isn't worth the headaches it would cause... even an auto-suggest would probably mess up enough to be annoying.
[1] And, despite this article's headline, that doesn't seem to have been announced.
Also, as petegrif mentioned below if this means Android browser getting NaCl and extensions support - that would open up lot of new possibilities.
As for Chromium vs the Android browser, it looks like Chromium has way more features than even Honeycomb's browser [1]. Though many, such as contenteditable, WAI-ARIA, File APIs and Notifications will be difficult to implement on a 3.5" device.
http://code.google.com/p/android/issues/detail?id=1376
They've been holding it back for nearly 3 years now because it adds 1mb to the android build.
iPhone has had it for years and even Blackberry natively supports it.