I recently downloaded the demo and I have to say it is working pretty well. I ended up putting the DemoSQL code into a page on my project and got everything working just fine. I then added a Telerik Tabstrip control to the page and I have the calendar on one page and the a telerik grid on another page of a multipage control.
On first load of the page everything works like a champ on the calendar. If I go the the radgrid tab and do some sort of ajax call like updating the grid with a filter, then click back to the calendar tab - none of the events are getting fired. I am guessing it is because the calendar isn't in the viewstate or something like that.
I can always make separate pages, but it would be nice if I could use the tab control with the AJAX - Any thoughts?