Just upgraded and now my keyboard isn't working. I can't enter text in apps (libreoffice, nav bar in firefox, emails in thunderbird, gedit, etc). But oddly I can enter text to log in, use the dash and into app dialogues.
Interestingly, the screen keyboard “Onboard” suffers exactly the same way. Must be something with my 13.04 config, as if I log on as ‘guest’ all is fine.