Requesting an enhancement of the "virtualization" functionality for controls like Autocomplete and MultiSelect.  Currently, it only works for local data.   Would like to improve this to work with remote data.  It should raise an event when you're nearing the bottom of a page to load the next page, which would be done via an XHR call.  We have uses of these controls that could possibly bring  back millions of rows, so the current virtualization is of limited value.

You see this kind of "endless scroll" functionality in many places today, like a Facebook feed.