LightSwitchSharePointUploadControl (nuget): A basic implementation of an HTML upload control that can be used with a Cloud Business App project, or with any SharePoint Enabled LightSwitch Project.  Apply this to your LightSwitch or Cloud Business App HTML Projects.  Sample code usage:  var myUpload = new SingleUpload(htmlElement, "SharePointAppWebListName"); A good walkthrough on how to implement this NUGET package is available here -  http://blogs.msdn.com/b/rmattsampson/archive/2013/10/29/html-upload-control-for-lightswitch-sharepoint-apps.aspx 
Keywords: LightSwitch