You can check out http://www.telerikmvpsamples.com/
They both host two complete (and enough complicated) applications - Forum viewer and task planner for a development team.
Task planner sample is shipped as both classic ASP.NET and ASP.NET MVC projects, however JS is really what matters.
Also check out HTML5Camera app that uses KendoUI along with other libraries. Not enterprise app, however (almost?) production one.