HTC has announced that the latest HTC devices launched after September 2011 are now unlockable with the updated bootloader unlocking tool. They announced that they would offer an option to unlock the boot loader and launched the unlocking tool earlier this August starting with the HTC Sensation and have added more devices to the list since then. They also launched the HTCdev site with OpenSense S3D and Pen SDK along with the web tool for unlocking the boot loaders.
The have launched the new unlock tool that now supports the latest devices including, HTC EVO Design 4G, HTC Rezound, HTC Rhyme and HTC Vivid. The HTCdev site would be updated with the new device list that would support this feature in the coming weeks and they would also offer this option to more devices launched prior to September 2011 soon.
Source: HTCDev | Via: Androidcentral