Looking to build a HTML5 Drag and Drop authoring tool. SImilar to http://www.celtra.com/adcreator/ads and http://sproutinc.com/technology/ , http://madmaker.com/content/pricing we are looking to give a user the ability to build mobile ad formats in the browser. The UI Should provide WYSIWUG IDE where user can create mobile Ads , preview it and finally generate output in HTML5. There are about 30 different components or widgets and each component will have about 10-20 properties to set at run time.