I’ve been using Ubuntu Precise Pangolin’s HUD feature, which is now included with Ubuntu’s Unity desktop. You may recall I went a little crazy about this feature when it came out of beta. So after a few months of using it, what are my experiences? Firstly, it’s clear that the HUD needs a speedy machine. My first use of the system was disappointing because I’d hit the HUD key (more on which later) only to have to wait about 350ms before anything h…