Please consider adding an option to Kendo Window to make it always centered/fixed. This will be essential for Modal windows/dialogs to always stay in the middle of the screen if there are scrollbars on the page. I would go as far as suggest making this the default behavior for windows with modal: true.
The dialog widget is now available, and it includes the centered/fixed behavior: http://demos.telerik.com/kendo-ui/dialog/index
+1 for the first comment
How do you currently make it centered? I can't believe that the default behavior for a window wasn't centered in the browser.
This would actually be very useful. I suggest expanding this concept to 9 layout positions (i.e. vertical-<top|middle|bottom> and horizontal-<top|middle|bottom>. This would be really useful for notifications type windows.