The MSP430F5529 USB Experimenter’s Board, part number MSP-EXP430F5529 from Texas Instruments, is a general purpose developer kit that is officially supported by OpenTag. In order to use it with OpenTag (or any wireless interface), a radio module is also required. Most of the Chipcon EMK boards (also from TI) fit into a socket on the board.
Here is an image of the MSP-EXP430F5529 board with an attached CC1100 module. The CC1101 module is preferred over the CC1100, but the 1100 will still work.
The MSP-EXP430F5529 board has a lot of features. There are so many, that there is no point to list them all here – the TI product page is the best reference. However, the USB feature should be noted. OpenTag supports a standard CDC profile (i.e. virtual COM port) that is implemented directly on MSP430s that is detected automatically on Mac and most types of Linux. For Windows, there is a driver file that is kept in the