If you have an Android, I-phone, ipad or any smart phone with gps then you won’t need Ps vita gps. And I don’t think anyone is going to buy ps vita for GPS. But buying a 3G+wi-fi model is preferred for full online functionality. And you can always connect with your friend’s device until you switch off the device. If you are living near a hotspot location you don’t need a 3G plan.
Everyone says that the ps vita is very cheap. But consider this; you need vita games, memory card, data plan and accessories for the full functionality of device. And I’m still asking the same question that everyone asks. Is it worth buying ps vita? I know you’ll find your answer when you buy it.