Microsoft is working on a project codenamed "Bali," which is designed to give users control of data collected about them. The project is a Microsoft Research incubation effort and seems to be in private testing at this stage.
. That page allows those with a code to sign into the site and says those without a code can request one.
The "About" page for Bali describes it as a "new personal data bank which puts users in control of all data collected about them.... The bank will enable users to store all data (raw and inferred) generated by them. It will allow the user to visualize, manage, control, share and monetize the data."
The Bali About page says that the Bali project is in "initial stage," meaning the developers are focused on helping users aggregate personal data from various websites and have an ability to view the data."
While not every Microsoft Research project turns into a commercialized product or service in some way, these days many do. So I'd think Bali has a good chance of becoming a commercially available entity at some point. With other tech vendors like Facebook in the news as of late for data-privacy-related problems, Microsoft would benefit from releasing something that championed users' control over their own data.