You're kidding right? It wont be long before some "expert" who knows more about manufacturing R&D than Whistler and Uniden combined will say this is a "trivial" undertaking; the scanner manufacturers wont do it because they are lazy, incompetent, or some other reason.
This "expert" will then point to the Unication pagers, and say "see? It's possible!!!" while conveniently forgetting that is a purpose built device. Hey, my Motorola handhelds never have a problem with LSM but then they also cost $5500
Unications dont cost 5500, the cost 500-600 not that much more than the 536HP.