It is actually a problem that we have on our corporative product.
We are using a Kendo.Map but the user has the ability of swapping between our corporative version of OSM, the public OSM, Bing and Aerial map.
This means that I have to create a map with five layers at the beginning and set different opacities downloading all the time the tiles for the 5 layers or I have to destroy the map and shift layers like you asked me to do in this post
http://www.telerik.com/forums/add-layer-dynamically-to-map
Could be possible to include a new feature on the maps that allow the developer to change dynamically the layer type, the url template and the subdomains.
without having to destroy the map, set it empty and create it again.
Thanks a lot.