Playing Guitar Hero has more in common with playing a game like Simon than it does with playing a real guitar. I'm not saying this is a bad thing, it's just a very different experience.
Another problem is drivers who insist on driving in the left lane at all times and refuse to move over. IIRC, the left lane used to be referred to as the 'passing' lane...
on reflection, the actual advice I gave my son was that if anyone ever hit him, he had my permission to hit back if necessary to defend himself. If a bully sees someone isn't willing to be a victim, they tend to move on to an easier target.
From what I've read, the HD video support is focused on external screen viewing. Microsoft will also be selling an optional Zune docking station with an HDMI output.
I think HD also refers to the built-in HD radio receiver.
If you really don't care, why even say this?