Microsoft officials say there are 20 Windows Live services available in beta and/or final versions. But it looks like the real count is in excess of 40. And that's not including a number of Live services which Microsoft has yet to acknowledge, but sources say are in the pipeline.
There are more Windows Live services than meet the eye. In fact, based on a listing on a Microsoft Feedback Web site, there are more than 40 Windows Live services in the hopper – not the 20 that Microsoft officials commonly tout.
Read more and see the full list at source