The HTC Sensation 4G on T-Mobile is all set to start receiving an OTA update today. It starts today and should hit most handsets within the next week. As always you can do and manually check for updates if you don't want to wait. The update brings the Sensation to Android 2.3.4 Gingerbread. The EVO 3D was updated today and shortly after the update started rolling out it also appeared over at HTCDev as available for unlocking of the bootloader. Most likely the T-Mobile Sensation will get the same treatment in the next few days.