Got BuzzWord on Linux ?
In order to login to the BuzzWord beta from a Linux machine, you'll need to use the user-agent switcher extension, and set your user agent to something like
Mozilla/5.0 (windows; U; windows NT 5.2; en-US; rv:1.9a1) Gecko/20050821 firefox/1.5
All the buttons I pressed seemed to work fine, though obviously it's even less supported than BuzzWord is normally.