I'm sure there are many of us who started their caching experience using an iPhone, before upgrading to a 'proper' GPSr. I know there are lots of cachers who still use an iPhone as a supplemental device, when caching on the run. Most people eventually find that the GPS abilities of the iPhone just aren't accurate enough for any serious caching, and can be a real problem if you're trying to use one to place a cache. There was an interesting update to the iPhone specifications recently that might change all that. Where previous models used 'Assisted GPS', the new iPhone 4S boasts 'Assisted GPS and GLONASS'. The latter is a Russian system of navigation that now features global coverage with a 24 satellite system. If the iPhone can now combine data from the two systems, it may be able to locate its position with a far higher degree of accuracy. Watch this space, and we'll add updates as they become available.
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- Tags: Apple, Assisted GPS, Geocaching, Global Positioning System, GLONASS, GPS, GPS Hardware, iPhone, iPhone 4, Smartphone