To be honest I am highly skeptical that FB would be able to have the sort of institutional capacity to launch any sort of medical device health product. It takes a non trivial amount of effort and time to fully productize it (in terms of system integration/ product testing/ FDA submission). Unless there is involvement with one of the major MRI manufacturers, I don't foresee this going far. Many more players in the game that actually have a decent shot of getting something like this to market.