Yea I remembering pondering that for a ver long time. I opted to go for a tethered solution first and I could later tie those two together. I just lose the use of two pins is all. My project requires two uarts and I did not want to bump it to a mega IC..
Other than that, i bet I could use this as a peripheral prototyping board for android or windows 8 or something.
I have like 8 spare boards with two boards per board lol. Need some use cases.
Edit: moment of clarity! I remember worrying about the FTDI and the bluetooth in conjunction with another load sinking too much current on the pin and becoming indeterminate. Perhaps Im paranoid.