Everyone's favorite stock AOSP ROM, CyanogenMod, has officially made its way to the HTC Evo 3D and Sensation. This is the first build to show up for either device, but according to the respective XDA threads, is stable enough for everyday use.
It's also worth noting that you won't be able to flash this if you used HTC's unlock tool, as it doesn't provide S-OFF, so flashing a custom kernel (which is required with CM) is out of the question. Thus, in order to flash this, you'll need to use Revolutionary to achieve root and unlock the device.
For more information on these builds, hit the appropriate links below.