sharepoint app development configuration

http://office.microsoft.com/en-us/store/add-apps-for-sharepoint-FX102836997.aspx?ai=WA102963791

http://technet.microsoft.com/en-us/library/fp161236.aspx

Build apps for sharepoint

http://msdn.microsoft.com/en-us/library/jj163230.aspx

How to: Set up an on-premises development environment for apps for SharePoint

http://msdn.microsoft.com/en-us/library/fp179923.aspx

download Napa

http://msdn.microsoft.com/en-us/office/apps/fp123627

http://office.microsoft.com/en-us/store/add-apps-for-sharepoint-FX102836997.aspx?ai=WA102963791