Samsung Exhibit II from T-Mobile has Carrier IQ elements but it appears to be inactive. So the Voodoo app told me. My phone is all stock, and is a prepaid version.
Manually checked a few days ago for the IQAgent & IQRD services and the libiq* files - didn't find anything
Downloaded TrevE's tool today and it confirms that Carrier IQ is not installed on this device.
My Motorola Photon 4g does not have it and neither does the Samsung Captivate glide i am currently using for work. For both phones i downloaded the VooDoo app and the Lookout Carrier IQ Dectector apps to check and both apps found nothing on either phone.