????5??2????????????y?屨??????????????????iOS5?????????????????豸????iPods??iPads??iPhones???????iPhone3GS????????????????????????????????????iOS5.0????????????????????????iOS?????????FutureTap???????????????????iOS5.0???????棬?????iOS5.0???з??????????????????????

????FutureTap???????????????????“WhereTo”???????????????????????????????????????????????????????????????????г?????iOS5.0?????????????;????з???????????λ??API??“MKUserLocationBreadCrumb”???????????iOS?????????μ???????????????iPhone3GS????iOS5?????????????iOS5????汾???????iPhone 3GS??

????????????????4?·??????????°?iOS?????汾??????????????????????????????????????6?μ?WWDC?????????????beta?汾??iOS5??