http://thenextweb.com/microsoft/2012/02/22/aimed-for-a-2012-release-sharepoint-15-will-contain-an-app-store/http://www.zdnet.com/blog/microsoft/microsoft-sharepoint-15-a-2012-release-target-an-app-marketplace-and-more/12002http://blogs.microsoft.co.il/blogs/itaysk/archive/2012/03/26/sharepoint-15-apps-as-documented-in-the-ctp-sdk.aspx