The MTK3339 GPS Boosterpack is the ideal GPS locator for your Launchpad. The MTK3339 Model comes with <2minute gps acquisition from a hotstart. The BoosterPack also comes with a breakout header in case you do not want to use the Launchpad, but interface it with another micro-controller.
CR1225 battery holder
Solder jumpers in case you wish to switch MSP430 pins
3D Fix indicator LED to indicate a successful dix.
PPS/RX/TX/3DFix/VCC and GND pins broken out.
For more informations, please refer to its wikipage.