Brian,
The demo does not communicate in both directions. The CC3000 opens socket 1204 and sends a UDP stream of it's accelerometer data. The application just connects and interprets it. Both the code on the MSP430 and the demo would have to be re-written.
I didn't develop the demo in the first place so modifying it is not a trivial task. I'll send you a note if I figure it out one day.
Thanks,
Louis