MobileScope looks like a great tool for monitoring and controlling what information third parties get from your smart phone apps:

We built MobileScope as a proof-of-concept tool that automates much of what we were doing manually; monitoring mobile devices for surprising traffic and highlighting potentially privacy-revealing flows

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Unlike PCs, we have little control over the underlying privacy and security features of our mobile devices. They come pre-installed with locked-down operating systems that often restrict their owners from exercising meaningful control unless they’re willing to void their warranty and jailbreak the device.

Our current plans are to release MobileScope in the coming weeks and allow interested consumers, developers, regulators, and press to see what information their mobile devices can transmit.