Lots of google's UI is getting (or has) things shifting instantly under the pointer it's quite annoying. The new gmail design quick-tools are often in the way, unknown until you actually click. Hell calling on my phone shifts the speaker and keypad buttons over instantly when someone picks up. Often placing the person I just called on hold if they answer too fast.
Wasn't this a pretty well covered UX rule to not move shit around on users. Up there with don't use modes and the like.