T-Mobile Sensation 4G users have has a bit of rough luck with ICS lately, especially as most other Sensation users received the ICS update some time ago. It now looks like the wait is in fact nearly over! T-Mobile announced the 16th June for the release but it now looks like it may be sooner than that as they have finished successfully testing the firmware and the roll-out should be starting soon.
The other good news is it looks like you guys will also receive a Sense update too, not Sense 4 unfortunately but 3.6 which is basically the Lite version. Still not too be looked down upon, as an ex-HTC user (and possibly looking to move back over) this actually sounds quite appealing!