No, it's a 2009 creation. When I started mTCP I did netcat first because it was simple. My first iteration of an IRC client wasn't much better than netcat. It has improved since then though.
Ah. I remember mTCP, from trying again much later, then. You said you started it, so is that all yours? In any case, very impressive work, and still useful every once in a while next to the cool factor! And HTTP/1.1 with pipelining is seriously cool...