I'm really feeling pissed off, when I see people using my designs and try to sell them as their idea.
This guy makes a nearly 100% copy of my Data Glass and only after I send him an email he added "inspired by Alain^s Projects". just inspired, really ???????
I think that's not the way open source should work. If you use the work of someone else, the minimum is to mention this person and set his website link in the description.
The only thing which calms me down, is that it is still my invention and other people will know it.