I honestly think this is one of the funniest April fools jokes I have seen today! Learn as you sleep! Honestly though Duolingo is a great company trying to teach the world other languages....for free! Recently listened to an interview from the founder Luis Von Ahn on The Tim Ferriss Show and have to say they are doing awesome work!
MSI takes part in the April fools pranking! Check out the source link for the full joke release page!