We say proprietary and you think, Sony. Isn't that how it usually goes? For the electronic giant's latest reVitalized foray into portable gaming, the same old custom solution is in tow -- now, with limited storage options. According to a report on Kotaku Japan, games made for the handheld will either save your progress to its SD card-like external storage or to the cartridge itself, as SCEI's not offering users any option for overl
