可以配合Google Map进行精确定位..
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不过国内暂时还是没戏罗..而且GoogleMap的流量费不低
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引用:

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locoGPS hacks into the iPhone barrio8 N! a2 x8 W( U+ L1 r
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Posted Dec 17th 2007 5:45AM by Thomas Ricker6 y! z8 _: h& F, U
Filed under: GPS
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loco_gps_4.jpg (31.1 KB)

2007-12-18 21:02

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O sweet jeebus, could it be? Why yes, that's the "stylish plastic enclosure" promised for the partfoundry GPS module iPhone hack. At least, it's the first rendered appearance. Initially peeped over at Engadget Mobileon Friday, the newly named locoGPS module requires a Jail Broken iPhoneto work. A new video shows the SiRF Star III chip doing its positionalthing in support of Google Maps. The $89 hack remains on track for aFebruary 2008 release -- you know, around the time when the official SDK launches and presumably... hopefully, an official iPhone GPS module is announced. Video after the break.
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http://www.engadget.com/2007/12/17/locogps-hacks-into-the-iphone-barrio/

搞到国内的话，就这个套件也不便宜！

越来越好了，咔咔！

就是电池不够用哈。。

真的爽啊,现在对导行感兴趣..

插了这个好像就不能插电源了吧，电不够用啊

有这个必要吗？买艾丰真的需要导航？