Having HUD on the Colorado would be awesome! I was out looking today trying to figure out a possible way to have one that looked factory. My Vette has it and it spoils you VERY quickly. When you are cruising down the road and that "surprise" LEO comes out of nowhere you never have to take your eyes off the road, it's right there on the windshield.
I can't tell for sure by the pics or info but if it has a cable running from the ODBII port up on the dash, that would get on my nerves pretty quick.