A brand new infinity blade game has been released in japan via DeNA http://andriasang.com/con00r/infinity_blade_cross/ Check out the link for trailer and screenshots. No english release announced but there is no reason why they wouldnt bring it to the west.
It's legit. It's a new freemium take on the series co-developed by Chair and the Japanese studio iNiS, the developers of Ouendan and Elite Beat Agents.
