It's probably no secret that Windows 8 would have an app store; as pointed out by Neowin, we've seen tidbits of it from the AllThingsD presentation. But now, Steven Sinofsky, President of the Windows Division at Microsoft, has subtly confirmed the existence of the store. How? It was mentioned via a blog post over at MSDN, where Sinofsky acknowledged the contributions of the different teams behind the new operating system. The second team in his list: App Store.