"UXB" stands for "User eXperience Blog", "User eXperience Bloke" and "UneXploded Bomb", in no particular order.
My job title here at Microsoft is "User Experience Evangelist" (or UXE) - which everyone agrees is a pretty creepy title.
At the pub last night, Gabe White (genius interaction designer) suggested that maybe the Aussie version should be "User Experience Bloke". Perfect.
OK, so that solves the problem of what to call the blog... Shane