Never heard of it. But if it become popular just like bitcoins someone will surely design a specialized ATM for Devcoin. And Robocoin might design it as well, the firm who created the first Bitcoin ATM in the world.
DevCoin is quickly on the rise, as it looks to me, that is.
So I'm thinking it'll happen in due time.
I'm actually going to try and get in contact with them. Ill update with anything i find out!