Thermalx, in our T-Mobile HTC One S Q&A, writes,
I thought carriers had about stopped with the whole Carrier IQ thing. But according to this T-Mo doc, the One S has Carrier IQ, any thoughts on that? Personally I'm not swayed much by it as I'll get CM9 as soon as it's available.
Ah ha! A good question, and one I'd meant to cover sooner. As part of our Ultimate Sense 4 Guide, we'd done a separate post on Privacy and the Tell HTC Experience Log. That covers analytics and other data that that Sense itself can collect. But it's not necessarily on your phone, and it's not necessarily the only analytics tool a carrier is using.
When you first go through setup on the T-Mobile (US) HTC One S, you'll be asked whether you want T-Mobile to be able to collect diagnostics information. The section reads as follows: