One thing I don't understand here: Does a lack of activity on the One X forums indicate that the device itself is losing steam? The Support for this device is still amazing from HTC and, if you look at the other threads you can see there are still a great deal of people asking questions about the One X's hardware and software.
The sales of the One X may have been going down but that is the usual trend when a phone has been out in the market for awhile now. Saying it's going down means nothing, but one thing I do feel matters would be that it is still one of the best Android phones out there. The new HTC phones in the Winter will soon outshine the One X, but don't think for a second that it will be any less great a phone.
You have to be realistic. I frequent forums all the time, and both the HOX forum here and on XDA for the US variant are more or less watching dry paint. Just look at the forum member review thread stickied at the top. It's still only ONE PAGE. The last two are for the beginning of June, and then one July one. That's like, one review a month. That one will probably be the last one too. When I was following the HTC Sensation and GSII last year, threads and posts were flying past and if you did not get a reply to your thread within half a day it was bumped off the front. The GSIII has two forums on XDA just like the HOX, and they are just whizzing by at a healthy pace. Quantity does not mean quality of course, but if there aren't a lot of novices posting redundant questions and getting yelled at for posting them, than there's something wrong with the popularity of the phone, especially beyond a handful of dedicated fans.
I'm not into the HOX hacking scene, but when you enter the development section and the first thing it says is GET YOUR ROOT BEFORE IT DISAPPEARS! and many people complaining about S-OFF and no released source for the AT&T HOX, this is not what I would call real support from HTC. The GSIII has been open and ready for devs since the beginning. And the only updates I've heard about for the HOX are 1.82, which was the only major one, and 1.85, a minor wifi one which helped some people and broke others wifi. It is also a bit silly to say phone sales should die off after two months. This is HTC's flagship for the entire year. Last year's GSII sold over 20 million units, and the majority were not just crammed in during the first two months, but spread out and sold well all the way until the release of this year's GSIII, which is projected to sell 19 million in Q3. HTC had record breaking sales last year, but started dropping considerably in Q4, and the downward slide has continued this year, with year to year sales for each quarter much less than it was a year before, when the competition was not as fierce.
The GSIII has ease of use for the regular folks, and high hackability for the once stalwart HTC hackers who are getting increasingly miffed at locked bootloaderes and such from HTC. HTC still has the build quality, and the screen, for those who don't like the poppiness of AMOLED, but what other strengths do they have left? They are making a lot of bad decisions with the HOX, and it isn't even from hardware limitation or exceptionally difficult software engineering, its just strange and rather backwards choices that require even more effort to implement, like heavily restrained multitasking, or nonexpandable memory, which none of the other flagships are doing (both GSIII and LG Optimus 4x have microSD slots). They have a microSIM tray. How about a microSD tray? Keep the unibody, since that is a selling point. Because of this one design decision they had to do things like severally compress the video and images because of the limited space.
I am still waiting for news of a new udpate for HOX since the last one was a month ago. What are the chances they had a copy of Jelly Bean really really early and decided to roll it into the next update? NOT.....