If you get into an accident, it's a *big* difference. When you're looking up, you're looking out the windshield, and you can still see traffic. If you look down even for an instant, blammo, that's when that deer crosses the street *lol*. It's one of the reasons why gauge pods w/pillars are so popular. I used to work @ USAA and have several police officer friends, and I can't tell you how many times (partial) fault was placed @ the foot of the insured b/c of what is termed inattentive/distracted driving. Oh, you looked down and didn't see that car pull out? Nope, not gonna be me *lol*. Not splitting hairs with you, b/c on my car, the boost and a/f gauges will be in the dash *lol*.
I currently have an HTC Evo, and I spent some time yesterday driving around with that driving app I mentioned, and let me tell you that I'm pretty impressed. I shot some day/night video, more of which I'll upload tonight. It is very easy to use, and the GPS speedo is accurate.
NightHD: http://www.youtube.com/watch?v=RpxJ6b5SFLs
The difference in quality between 720p and non-hd is staggering, so I *definitely* want a tablet w/a HD capable video camera. The Tab doesn't shoot video in HD, so that's out the door, and the Streak 7 has rec'd abysmal ratings due to the poor screen resolution, so I'm going to have to pass on that one, too. HTC has a new tablet coming out in Q2 2011, so I'm thinking I can get a dash/windshield mount for the EVO as I wait for that. Specs are here: http://www.engadget.com/2011/02/15/h...-7-inch-flyer/