You have said that the Telerik controls are compatible with bootstrap, but I don't really think so.
Because my interest in bootstrap is not so much in the styling (colors, fonts etc.) but in the responsive layout. What I need to do this year is move my projects forward to VS 2013 and begin making my master project templates work well on tablets, and that means using bootstrap.
A good example of what I need is this: http://startbootstrap.com/templates/sb-admin/
If you open that page and start making the browser window narrower, you will eventually see the left nav bar and top nav disappear and be replaced by the menu button that we come to expect on mobile browsers. What I would need to see is the RadMenu and Rad Panel be able to do that on a page. While those controls may not break the bootstrap template, I don't think you can claim fully compatible until they can do that sort of responsiveness.
If we could just get there by assigning the appropriate bootstrap CSS classes that would be great. If so, an example would be greatly appreciated!