So I vote that this thread be un-stickied. Since we have root and a workable recovery method, I doubt this thread has much relevance any more.
I partially agree, and partially disagree. Let me explain.
Currently, we have root, and we can load a version of 2.2. Unfortunately, the version of 2.2 we can load is one that was released onto a developer phone way back in April: needless to say, it has countless bugs, is not optimized much at all and really doesn't present a who lot of incentive to make the switch.
From what I understand, we are now stuck waiting for the official release which will obviously bring us an optimized kernel, a less buggy version, etc etc. Unfortunately, even when we do have the official 2.2 release, we will still be restricted to the kernel that it comes with b/c it is the only Moto-signed version we will have (since the boot loader is still encrypted, we can only use Moto signed kernels).
The good news is this: I assume that once we do get an official 2.2 release, we will start seeing support from BB, CM and other big ROM names (but this is just my very uninformed opinion...). I haven't had any experience w/ custom ROMs myself, so if those guys typically thrive on using custom kernels, then maybe I'm wrong about seeing support.
The bad news is, this: when it comes time to release the next OS after 2.2, we will almost certainly be stuck waiting for the official release (remember that we got the early 2.2 from a pre-release developer/tester phone). Unless we're lucky enough to get access to a dev phone loaded with Gingerbread (or its successor), we will not see a TRUE early release of Gingerbread on the DX (I say TRUE b/c without the proper kernel, it really won't be Gingerbread). This also has dire implications for anyone hoping to use the DX for the full two years of their contract (or longer): there is a possibility that Gingerbread and/or later releases will take an EXTREMELY long time to reach the DX. Heck, there's even a chance that those version won't make it to the DX at all (depending on when Moto/Verizon/Google/whoever decides to discontinue support). Don't forget, 4G and a myriad of new more powerful phones are coming, so who knows when the DX will be sidelined for good.
There are some scenarios in which my doom-and-gloom scenarios don't apply:
1) We crack the boot loader encryption. Probability of this occurring: 0. This isn't up for debate, it's a fact: if you don't believe me head over to AllDroid for a few in-depth, and quite conclusive discussions of it. Even if someone was dillusional enough to WANT to try cracking it, said individual almost certainly wouldn't have the know-how to even try. Those who do have the know-how are the same folks who understand that the encryption is FAR FAR to great to brute-force (yes, even with a global farm of computers).
2) We find an alternative way to load kernels without the stock boot loader. Probability of this occurring: not good. I do have a hightened respect and confidence in our hackers, but this is where the Moto Milestone guys got stuck. I'd like to think that we have a more intellegent, crafty and skilled group of hackers working on the DX, but that is really just a pipe-dream. A LOT of geniuses have been hacking away at the Milestone for quite some time now, and I'm not dillusional or conceited enough to claim that our DX guys are far better and brighter.
I know someone is going to say "well look how much faster we've achieved ______", so let me address that right now: much of what we've achieved is due in large part to the hackers utilizing their knowledge of what the Milestone guys have been doing. I'm not taking any credit away from them (they're AWESOME), I just am pointing out that the aforementioned argument is not a valid one.
3) We get a leak from an EXTREMELY high level Motorola engineer that allows us to access the boot loader. Probability of this occcurring: very close to 0. Someone at this level is not going to jeopardize their reputation or career to please a bunch of hackers. That is unless we can get the Leverage crew to run a brilliant scam on said engineer, have the Soprano's beat it out of him/her or get Sheldon Cooper to just remotely steal it or reinvent the technology for us! (tv references ftw, lulz).
Summary: this thread is still somewhat relevant b/c the signed boot loader is still relevant. The eFuse protection: not so much.
Disclaimer: I could be wrong. If I am please correct me (politely) and provide the correct information. If you don't know for sure that something I've said is incorrect, or you don't have the correct answer, please don't just post to contradict me b/c you're disgruntled about what I've said.