I believe what we should be developing instead is the software that provably generates semi-random paths and inputs to the phone's accelerator API that fake your true location.
that possibly could be easily detectable... it might be better to have hardware switches that would allow you to disable all sensors individually whenever you want some privacy... there are many sensors on my phone that I never need but possibly could leak some information, yet I can't disable them... Also, I just installed an app on my phone that didn't require any permissions, yet the company was able to send me a text message... Android permissions suck a lot, still.
