HTC sensation does have this...though its not called carrier iq, it's called HTC report agent.
All computers, yes ur phone can and is classified as a computer, has these loggers. Its more like a temporary file folder. It only reports though when ur phone crashes. U know, the "tell HTC"? The HTC report agent reports the keystrokes and combinations and as to what was happening before the phone failed.
All phones classified as a smartphone has it. On regular computer, it's called "cookies" or cache or simply temp files. Whenu reboot/restart the phones, it gets cleared or u can just clear it urself. Either way, all phones has it...and also u can turn it off.