Same here - weird!
Is Google Pinyn being auto-installed on the Nexus7? I'm 99.99999% sure this isn't something I chose to install.
Ok, found this article from a few hours ago. http://www.cultofandroid.com/14030/gmail-and-pinyin-ime-updated-with-the-nexus-7-in-mind/
This showing up out of nowhere and no obvious way to remove it is disconcerting. I uninstalled the updates and was asked if I wanted to revert it to the factory image, to which I chose yes and it disappeared... so it's there, but not there?
I also noticed Japanese and Korean keyboards while I was in settings. I guess I just never noticed those before this popped-up as a new app.
So what's the issue then? Isn't it better they sell a product ready for international use?