[twotwotwo]

I, for one, welcome all progress towards the inevitable vector future without unnecessary pixelation. :)

I think the Go gopher is, rather than a trademark, a copyrighted work under a CC-Attribution license. The attribution to make this use of it legit could just be adding "Go gopher by Renee French, under CC-Attribution license" to the Note section. (See http://blog.golang.org/gopher.)