Thanks for your help. I love my evo (mainly what I can do with it post-root). The one-x looks like a winner... Now just need an announcement of a date.
Actually, I'm starting to think the One S is more of a winner. The one thing that put me off the One X is the size of the phone. My sensation XE is about as big as I would want a phone really. The One S is a little cheaper, is a similar size to the sensation, has a super Amoled screen, and has a the new dual core krait CPU.
In benchmarks the dual-core krait CPU has performed better than the quad-core tegra 3 CPU. Of course where it is let down is with the GPU. It still has the current generation Adreno GPU. It won't be changed until later this year. I'm not really sure how much it matters though.
The benefit of having the Tegra 3 chipset is games are optimised especially for it. Although, to date there has only really been a handful of games made for it. Maybe that will change in the not too distant future, I don't know.
Still, the One S isn't really what I would consider an inferior phone in comparison to the One X. It has advantages over the One X. And right now, for me personally, I consider it the more desirable phone.
Having said that, I will probably wait until next year now and see what phones we have then.