HTC had previously announced a new version of HTC Sense that would include an optimized boot speed touted to reduce the boot time from 30 seconds to about 5-10 seconds. This updated version of HTC Sense will apparently debut on the recently-announced Desire HD and Desire Z cell phones. In case you’re wondering if HTC really managed to get the boot speeds to 5-10 seconds, check out a video of the boot sequence in action when it was demoed in London. Video after the jump.