Yeah Yosuke Okunari is also very active on Twitter space and was producer for some of the SEGA Ages releases (Dynamite Deka and Panzer Dragoon) also was producer for the PS2 NiGHTS into Dreams, Crazy Taxi, Jet Set Radio, Castle of Illusion re-releases.
He has not worked on phone games, so this also leads me to believe this is a eShop/PSN/XBLA/PC game.