From their site: Windows Live Data provides a mechanism by which developers can ask Windows Live users for permission to access the user's Windows Live services and data on the user's behalf. Currently Windows Live Data exposes Windows Live Contacts which is the central address book for all Windows Live services. Access to additional Windows Live services will be added for the upcoming Beta and other future releases.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.