As others have said - focus on your mission. MS has many avenues their trying to pursue, if you focus on just your one area, I don't think you will have an issue. Plus...its microsoft, not google.
Thanks for the feedback. Do you think there is a market for the product I'm trying to build?
i think there is. consumer apps are hard though and require a lot of scale... i'd encourage you to treat this as a side project. still work on it, but don't think of it as a "startup" or "company" until it actually starts getting traction... see this -- http://blog.samaltman.com/projects-and-companies
That is a great post - thanks for pointing me to it.