There is a lot of work involved in creating or even integrating a data table, so we don't want to do all the work for an existing data table knowing that hundreds if not thousands of hours are going into building a better one. I suspect this will be one of the bigger features in Data Grid v2 next year, but for now we are waiting for the foundation to solidify.
Waiting 2 years instead of integrating an available table that's working (like datatables.net) and keep customers waiting. Interesting strategy ...
Just a recommendation: never trust in Adobe.
Also, I don't understand why you stay with Spry. I don't see any development in this anymore or am I wrong?
Nevertheless, I bought dmxzone's Ajax DataGrid which works fine. But I'd preferred a WA solution.