Wow - this is cool!

spectec_sdio_gps_module

It's a GPS receiver which will plug into an SD slot on a device... what's cool though is that you can also put into it a MicroSD card.

This is a real bonus as if your device doesn't come with GPS then you can use the GPS and have the maps stored on the MicroSD card (which are now available up to 2GB)

You can check out details over at the Spectec website