I'm answering - I didn't hear about Hackathon or it's winner before this conversation.
Well, I'll caution you and say that aside from them
maidsafe is doing more or less the same thing, has millions of dollars in backing, and has had a working system for years, just no way to monetize it until recently. They're launching a monetized system in April.
see also this block entry
http://blog.maidsafe.net/2014/02/18/token-on-maidsafe-network/Someone has 20 millions of dollars in backing and just starting to create professional cryptocurrency exchange, someone does not have 20 mlns and already started
http://www.upbit.org/en//But thanks for your caution. We just starting, and we think it's real to make something like this.