Thought I'd move my discussion from the article comments to here.
I'm confused about the radio frequency support of the AT&T One X as well. GSMarena has said it has frequency support for AWS
http://www.gsmarena.com/htc_one_x_at&t-4614.php, but this is not the first time I've heard that this phone won't work on AWS... pretty confusing. What's going on? On the other hand, the One XL doesn't have support for the 1700 MHz frequencies
http://www.gsmarena.com/htc_one_xl-4572.php, pretty confusing.
Also, on storage: How come there wasn't any comment on the ludicrously small storage space on this phone? How is 16 GB of flash acceptable in a TOP END Q2 2012 phone?!? This thing costs well over $600 and we only get 16 GB of flash! How much does slow NAND cost? Would an additional 16 GB of storage really cut into the bottom line? How about making 64 GB standard? High performance SSDs are going for $1/GB, and the NAND in these phones is no where near that performance level... food for thought. I can buy a 32 GB USB drive for $18! Why must HTC play down to Apple's level, then yet provide none of the upgrade options (which are in themselves insulting in a $600+ phone)?
Also, I'd personally rather they make 64 GB standard than have to keep playing around with SD cards. Their performance always leaves much to be desired, even if you buy class 10 and internal flash performance is always much better.
All I can say is, I hope the S4 version of the SGSIII will have the One X's great screen quality and amazing battery life, but with more built-in storage (or microSD if they must). I'd also like to see truely universal frequency support (a la Galaxy Nexus) and a better casing material. I don't like the sound of the "scuffing" of the backside plastic on the OneX. That new micro arc oxidized ceramic material sounds much more interesting. A 3000 mAh "MAXX" version of either of either the One X or the SGSIII might be interesting too, so long as they stay under 10 mm.