Add-on modules for the Raspberry Pi computer platform which provide GPS positioning, accelerometer and prototyping functions, are available from element14.
Designed by the designers of the original PiFace Digital and PiFace Control & Display accessories for the Raspberry Pi and the recent PiFace revisions for the Raspberry Pi model B+, the Microstack range of stacking accessory boards have a common form factor, software and interface connections, built on a platform specific base board (adapter board) for the Raspberry Pi.
There is a Microstack base board which can be used for connecting accessories including GPS, Accelerometer and Proto functions to be connected.
For more detail : Raspberry Pi gets GPS add-on module
