HTC Vivid, HTC Amaze 4G, HTC EVO 3D, HTC EVO Design 4G, HTC Incredible S, HTC Desire S and HTC Desire HD. No precise date was given as to when the owners of these devices can expect the latest build of Google's open source operating system.
For those with an HTC model not mentioned, there still is hope that you could receive an update. HTC said that more models getting Ice Cream Sandwich will be announced in the upcoming weeks. Models like the HTC ThunderBolt are still not accounted for, so owners of that model should definitely be crossing their fingers.