To sum this entire thread up, at least from my perspective and posts, is that I don't understand the continued Uniden silence. I may be 100% wrong, but it looks like this will not be a firmware update, and those of us who want TDMA will once again have to buy new scanners.
How hard would it be to just put out a beta firmware with the typical caveat, "USE AT YOUR OWN RISK"? All of the arguments about engineering, testing, and costs would be moot IF this were already being worked on, and IF this were a simple firmware update. We've had firmware releases in the past that could be "rolled back" by re-installing the previous firmware.
Dewey