alphanikonrex said:
I'm just saying if we have built-in GPS, all we have is built-in GPS. However, if we put in WiFi, we not only have the usual advantages of WiFi (like wireless data transfer) but can also integrate a GPS like the GPS of the Eye-Fi SD Card system.
EDIT: More specifically this link.
That's not GPS, and they go to great lengths to not say GPS. That's a Geotagging routine which notes what Wi-Fi access points are visible at the time a photo was taken. It then, after the fact, compares the list of found access points to Skyhook Wireless's http://www.skyhookwireless.com/ proprietary database and gives you a rough position.
Problems:
1 - Only works when you are in range of a broadcasting Wi-Fi access point (doesn't have to be an open AP nor do you need to be connected to it).
1b - Only when said AP has been mapped by Skyhook Wireless.
2 - Only accurate to a resolution dependent on the range of said Wi-Fi access point.
3 - Depends on access to Skyhook Wireless's subscription database (free access with Eye-Fi Geo/Explore/Pro cards) which is a paid service.
4 - Nikon Wi-Fi solution would need to implement the recording of the above mentioned data.
5 - (nitpick) need access to internet to geotag.
6 - (nitpick 2) must use their software and pray they update it for your new OS version. (Windows users likely need not worry).
7 - (Not a nitpick) - Only works where Skyhook Wireless has mapped APs. That means (according to Eye-Fi's docs) 70% of the population of the USA. This level of coverage would make ATT's 3G coverage look large. ;) (Mind that this uses Skyhook's WPS service, not their totally different XPS service which is a neat variation on AGPS ( http://en.wikipedia.org/wiki/Assisted_GPS ) using Wi-Fi points as hinting tools)