The real thing to say "WOW" to are some of the reactions on this thread.
If you think for a second that updates for one particular phone means that HTC or Verizon or whoever has given up on another one (i.e. the Thunderbolt), well that's just naive.
Everyone complains that they didn't test MR1 well enough and released it too early because of all the bugs it has, and then in the same breath are ticked off that they aren't rushing this update?!?!?
I know some people are frustrated, but the simple fact is that 4G LTE is different beast, so there's obviously a lot more variables/unknowns when it comes to testing OS releases. Do you really expect Verizon/HTC to just sit on updates for other devices just because they aren't ready to release one for the Thunderbolt? That really doesn't make sense.
Here's the real truth: There is a HUGE development community for the Thunderbolt, and an even larger community of "testers" (such as myself) running the custom ROMs built by those developers who have worked very hard to bring a TON of otherwise unavailable features to the Thunderbolt on some very stable ROMs. IF you are really unhappy with the level of support you're getting from HTC/Verizon, forego their support* and root your phone and manage your updates yourself. That's why I did, and my Thunderbolt is nothing short of awesome.
Just my 2?
*This is precisely why rooting your phone "voids your warranty". Neither Verizon or HTC can support software they don't approve for the device, nor should they be expected to. It doesn't mean you don't have right to assume that risk and take matters into your own hands if you're unhappy with your situation. At least that's the way I see it.
EDIT: FWIW, I'm not saying folks don't have the right to be frustrated (FAR from it), but as I see it, getting angry over other phones getting updates is on the order of comparing apples and oranges...