We're pretty excited for this year's event, which is happening July 8 to 10. There's still time to register and order the t-shirt—or even just order the t-shirt if you already registered but held off on the shirt—but t-shirts must be ordered by June 13 in order to be available for Go Play NW 2011, and we will not be shipping the shirts, you must pick them up at the event. We'll get some version of the design up on Spreadshirts as well, no doubt, so that people can custom-order their own shirts or sweatshirts with it.
Oh, and I'm rather pleased with the announcement I wrote for our website about the t-shirts, so you could also go read that if you like. It's more entertaining than this post.