I Can't Wait!
I am so excited about the language creation tools coming out. You could easily say that I am too excited about it. I constantly think about it, it is like my whole world orbits around that one thought. I am also having trouble sleeping because of it. Does anyone have any tips? Do I have an attachment problem?
Although Duolingo is an AMAZING tool, you can't learn Korean solely from it. Korean is too complicated for Latin and Germanic based language speakers. Not to mention how strange the slang and grammar is. I would say use Duolingo, only as part of your training.
Other tools: http://memrise.com
Source: I am on an intense Korean language program that aims to make me fluent by New Year's.