I came across this last night Privacy Blocker app for Android spoofs your personal data - Boing Boing I purchased the app and installed it on my NC and my Aria. The results are fairly amazing, if not a little unsettling. It has a extensive amount of settings but is surprisingly easy to use and rather nice to look at as well.
It's currently $2 on sale and I would strongly recommend it. Even if you choose not to implement any of the "fixes" that it offers it is nice to know who is keeping track of what and when.