Ok, here is my response to most of the opinions on here.
1 - why do people complain when they don't have a nexus device: It's not a matter of being later than nexus, it's a matter of ATT not pushing the HOX update specifically. I could compare it to other brands and such, but there is no need. Every other version of the HOX has gotten their update, and therefore there is no blame to be had other than ATT's incompetence. Also, ATT has turned around other phones with the same update in the meantime, therere there is no blame to be had other than ATT's incompetence.
2 - Installing a custom rom is easy and takes very little time: yes, I know. My HOX used to be rooted, and I went through a lot of trouble just to get a stock rom on it to recieve updates. The custom rom community (which I consider myself to be a part of), does not acknowledge the fact that there are disadvantages to not having stock roms. I'm not going to go into details, but some people want to use stock roms for various reasons.
3 - Samsung should be expected to have quicker updates since they have a nexus device being updated by google: This is ridiculous for many reasons. First: nobody is talking about HTC being slow on updates, or even for the HOX being updated too late. The issue is the ATT HOX update. You might as well be talking about the playstation if you're going to write opinions like that. Look at how many posts in this thread are irrelevant to the actual issue, and you will realize how much "noise" there is in this forum.
That being out of the way, I'm going to restate the issue: The time between the source code being released, and HTC writing an update for the HOX was satisfactory. However, since then, ATT has taken too long to turn around that update, and release it to its users. Discuss.