We are all sharing a platform and application

not recognize Road, thanks to GPS, because of good weather in California, the GPS a high success rate. U.S. map updates very fast, it is electronic map has enough inputs, and has a very strong industry support. the industry not have the so scattered, it is more concentrated, we are all sharing a platform and application. in the domestic electronic map is a regulated industry. Moreover, China is building too fast, too fast updates, unlike the United States Today, almost five years ago to the Chinese road repair fast, the rules change too fast to keep up with the electronic map. ; in the United States, generally I are going to first place with mens belts a Yahoo map of route print, then go out, forget the day the results, I,m going to a place out, I saw a cloudy day, so I took car While waiting in a long time, until leather belts the sun came out, too much reliance on the GPS is not a good thing ah. its address is the same format, so you lose as long as the address entered, you can not know the floor, and other information, you can still be found.