The launchpad can be seen as Texas Instruments’ own arduino.
The cool thing about the launchpad is that is comes with the debug interface included onboard. This means that we simply connect the to board with a common USB cable, fire up the right software and get ready to program and debug the processor.
The 3 variants of the launchpad have different base processors (in performance, features and cost) but have compatible form factors and pinouts. This is pretty cool and gives options to choose which device is most suited for a particular application.
More information about the launchppad can be found here: http://www.ti.com/launchpad
Another great site dedicated to the MSP430 is http://43oh.com