i'm p sure vita is ARM, maybe that's the confusionPS3 was ARM architecture? I thought ARM was limited to mobile applications. Wiki says Cell mps are Power, not ARM.
also, how developer-friendly and powerful the ps4 is kinda reminds me of the vita. in theory it's great but it wasn't enough. i'm not saying the ps4 will fail, cos sony have all their first parties on it and eventually devs will have to move on from ps360. but i can see a situation where people don't adopt very readily, like what happened with the 3ds. so many games are still released for the ds even now and the install base is so big that there's no incentive for devs to move on.
it's a strange time