I just wish they had Tab Pinning that didn't suck. The kind Firefox has. Theirs is amazing.
But a pinned tab should A) lock itself to a specific website or optionally a single page, B) be closeable but still have the tab icon up there and C) when you click it again it will reopen right back to the original URL. I'd have tabs for FaceBook, Twitter and NeoGAF. D) Closing all tabs would exclude pinned tabs.
I also wish they had a tab bar that scrolled when too many were opened and tabs need a minimum width. Right now they can get so tiny you can't even see any text. How useful is that? The answer is not at all.
Oh, and the iPad version of Chrome should work the same way as the iPhone one when swiping to switch tabs. The way it is now is awkward and stupid. The iPhone version is more logical. The iPad version is completely useless.
Also the Chrome to Mobile feature should be built-in, not an extension. And it needs to stop falling asleep. And it needs to let me send a tab to another computer, not just a mobile device.