“Borrowed” from 
July 17th, 2008, Tomasz Rychlicki
There is a story of some logo “borrowing” described at www.ecogeek.org website. Paweł Tkaczyk posted a short note about a similar situation in Poland. If someone of you knows about any of such “borrowings” or “similarities” then I’d be happy to read about it. Trust me, I’m not going to sue anyone I just need it for, let’s say “scientific” purposes. :)