But that's it for now, right? It still has to be plugged into a PC running Sentinel to download the RR database?
You would think with a wifi connection to the internet the scanner could connect directly to RR and update itself... I am planning on mounting a BCD536HP in my car but my windows machine is a desktop... no real way to bring it outside and into the car to update the scanner. Luckily you seem to be able to remove the SD card and put it into an SD card reader and run sentinel on that.
As I said, there is a ton of potential. It's possible you would not be able to update directly, but you might. We will just have to see what options Uniden comes up with. What you mentioned might be one option.
That said, I would think you could update the scanner remotely, too - even if it's not using the scanner to update. Run Sentinel on the same network and update the scanner that way.
But, as you said, it's trivial to remove the SD card and reprogram it (or better yet, replace the SD card with your (updated) backup copy and then update the card you removed. The scanners come with 4GB cards. I have already purchased 32GB cards (the max the scanners are reported to support) just to have lots of room for recordings.
Joe M.