Matt sez, "The weekend of May 1 through 3, Penguicon brings together science fiction, open source software, and other geek interests in southeast Michigan. In its seventh year, the attendance target for the convention is one thousand, three hundred and thirty seven.
Guests of Honor are ubergeek Wil Wheaton, alternate reality game creator Jane McGonigal, Rasmus Lerdorf of PHP, steampunk author Sarah Hoyt, and John 'maddog' Hall of Linux International. Hack of Honor is the Candyfab project that prints 3D models with sugar."
I was a Guest of Honor at Penguicon some years ago and it was absolutely brilliant.