This is a paraphrased interview from the Twitter guy.
"It's a plus that people think Soul Sacrifice is copying Monster Hunter. Because they have an interest in the title. We took the good parts from MH, but you will feel the differences when you play. Because we know you will see the difference, we have confidently taken the good parts from MH. You'll understand when you play."
Also
"The reason that real software isn't coming out for Vita is because business men are making all the decisions. If you are a creator, there is no question you would choose to make games for Vita. Because that is where the real interesting stuff is. If the games are interesting, the hardware will sell."