Litecoin and NLG come to mind. Both being used in various merchant capacities, with NLG growing faster than LTC.
Leafcoin wants to plant trees to combat global warming. Greencoin wants to create renewable energy solutions, as does solarcoin. I could probably go on and on, but that was just the first page of the altcoin subforum.
Having a great idea is one thing. Implementing it is another.
As far as everyone thinks POT has come... it hasn't. That is the cold reality. Not spreading FUD, just stating facts. The only vendor that openly accepts POT, in the industry that POT is targeting, is Rock River. Unfortunately, they don't accept it for medication, and as far as I can tell, they don't take online orders for the stuff you can buy with POT. Unless there are more vendors that we don't know about, that's it. There still is no accepting vendors list anywhere.... STILL.
Mind you, the price is increasing, and that's great. But there needs to be industry acceptance... not the blind hope for industry acceptance.
-Fuse