Board Thread:General Discussion/@comment-5051846-20131016172937/@comment-3076833-20140113202039

It's hiden briefly but it's under their "Crowdfunding" tab. I'll quote the paragraph and bold the part which the design contest is mentioned :

"The minimum amount we will ask will correspond to the amount needed for renting a recording studio and paying the voice provider of our VOCALOID™. Indeed, developing a VOCALOID™ implies numerous costs: buying the licence from Yamaha Corporation, renting a recording studio, paying the voice provider and the winner of the design contest, but also costs to distribute it."