Finally! Lots of boaters and others with an iPod Touch, iPad, and other devices without built-in GPS were excited about having Bluetooth connectivity when they learned about all the great navigation and other location-specific apps they could run on their devices if only they had GPS. Then they discovered the Apple Bluetooth protocol did not support existing Bluetooth GPS receivers that worked just fine with most laptops and other Bluetooth-enabled electronics - unless you first jailbroke the device with a complicated and possibly risky procedure. Until recently, the Magellan ToughCase was the only way an iPod Touch could gain GPS, along with a waterproof case and an external battery. But now the Dual XGPS150 gives almost all Bluetooth devices (both Apple and Android) a fast, accurate GPS. This means you can turn your device (Android smart phones without GPS also) into a chart plotter with a navigation app, run other apps for tides and AIS ship locations, and even automobile navigation. Learn all about it.