How to have multiple input languages? I just unboxed a nexus 7 and coming from an iPhone I am missing the possibility to set multiple input languages for the on screen keyboard.

I need to type text in English and in Italian but I can't find a way to select the Italian keyboard. I am using a device bought in the US, but I don't think that would matter too much.
Assuming that it hasn't changed since ICS, you can go to:

Settings → Language &amp; Input → Android Keyboard settings


You can enable another languages over there and then you can quickly switch by long pressing on the space bar or by tapping on "Select input method" entry on the Notification Bar.