I am not sure how the basic usage demo is related to the case discussed here. However, the Kendo WIndow won't open because the initial frame's view port is smaller. You can enlarge the right pane for the Kendo Window to show up. Or clone the dojo and open it in fullscreen.
As for the demo I provided, yes, this is how this code could work for the time being—reseting Kendo WIndow position on dragend. This is why I mentioned that you can possibly achieve the same by using the dragstart and dragend events. Although, using the the drag event of the draggable utility will enable you to persist the position all the time.
As for the UserVoice item, as you can see, it is currently under review. Therefore, there is no firm estimation currently whether this feature will be included or not. Any further details on that will be available in the item linked. If, however, there is valuable information regarding the enhancement request there you would like to share with us, please feel free to post a comment there so that the dev team and our PM to be able to consider it during the request evaluation.
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