Ipad 4 crushes graphics capability of PS Vita and is far more functional. I'd just stick to IOS. Vita is a sinking ship Sony is not happy about. Developer support is anemic and has done nothing but atrophy. There seems to be a movement of widespread apathy toward the idea of an expensive, specialized gaming handheld. 3DS is suffering too.
iPad 4 Crushes The PS Vita In Graphics Performance | Redmond Pie