...we can't count on RS to do much for us.
I don't know about that. After I recently contacted Radio Shack Corporate/Executive Offices about their 30-day scanner warranty discrepancy, they decided to re-instate their 1-year warranty on the five current Radio Shack scanners. See my post #15 here for the full details: http://forums.radioreference.com/ra...er-warranty-now-only-30-days.html#post2581575.
Contact Radio Shack by email (customer.care@radioshack.com) and/or by telephone (1-800-843-7422) and tell them that you would like to receive the DMR upgrade for your PRO-668 when Whistler releases the upgrade for their WS1080. Sometimes the squeaky wheel does get the oil especially if there are enough squeaks!