The Foolography Unleashed D90 and Holux M-1000C Receiver Kit contains everything you need to geotag your photographs besides the camera itself.
The Unleashed D90 is a wireless Bluetooth module that allows you to geotag your photographs without the need to tether to GPS receivers. This compact, lightweight device sits directly on the camera and is easily configured to the Holux M-1000C GPS Logger. The module automatically receives the GPS data and embeds it into the image's metadata immediately; no additional steps are required at the computer.
The Unleashed D90 is compatible with the Nikon D90 digital camera. Also, it works with Nikon D3100, D5000, and D7000 digital cameras if turned upside-down.
The Holux M-1000C is a wireless GPS logger that easily and accurately records logs and data. The M-1000C is very compact and lightweight, making it perfect for carrying in your pocket or bag while traveling. It also features an integrated GPS chipset that provides 20-hour battery life from a removable lithium-ion 850mAh battery. The 4MB of internal flash memory is capable of storing 200,000 data logs via the v1.2 compliant, Class 2 Bluetooth interface.
Note: The included ezTour software from Holux allows you to download and manage your tracks (Windows only). To download the tracks with a Mac you can use the freeware BT747. A detailed installation description can be found on the Foolography homepage.