Despite jra's appearance, business casual was still in vogue at LinuxWorld Boston, though we certainly respect Jeremy for not being a slave to fashion trends :-) :-). This article from Linux Journal agrees that Jeremy's "appearance" at LinuxWorld was a highlight of the conference:

The most fun to be had on Day One occurred at the conclusion of the day, as the Geeks and Nerds competed in the Golden Penguin bowl. Jeremy Allison jovially hosted the event, which drew a much smaller crowd than it deserved.