MIC Gadget says a prototype of a 64GB iPhone is being sold on the grey market in Hong Kong. Like other iPhone prototypes, it is labled "XXGB" on the back, but on the iPhone's about menu, it shows that it has 64GB of flash memory. No smartphone has ever hit 64GB yet (I'm not sure why), though Samsung also might make a 64GB smartphone. Rumors also say that Apple will make a version of the iPhone 5 or iPhone 6 with a slide-out keyboard. Yes, that slide-out keyhoard that Steve Jobs hates so much!
