@Berstuck, it could be huge.  Just think, ten or twenty years from now there may be whole groups of musicians who learned to play from video games.  I have a couple real guitars, I never learned more than a few cords and screwed around with them.  This kind of marriage between video game and music is exactly what I needed to motivate me to learn to really play.  And hey if I get some gamerscore in the process, well, not a bad deal :)

Still unclear on if you can use your existing electric guitars or if you have to buy a special Rock Band brand guitar to do it with though... I would hope for an adapter or something.

Berstruck answered correctly already... 

Just so you know, you can view gamertag details even if they are not your friends (As long as their gamertag doesn't limit seeing their games only to friends) by going to a URL like the following:

http://live.xbox.com/en-US/profile/Achievements/ViewAchievementSummary.aspx?compareTo=Erikers

Just login using the e-mail and password for your gamertag, change "Erikers" to any gamer tag.  And if the gamer tag has spaces, replace them with plus signs...

It will compare your games/gamerscore with each of their games.  And will be sorted by games they have most recently played.  Then, by the games you have most recently played or own that they don't.

I know what you mean.  Whenever, I play easy games I try to llimit the scoring and mix in some decent games as well.

@JPL78

Likewise man i've got a few guitars in my basement that i haven't touched for what must be nearly 15 years now. This might be the way i finally have the motivation to learn to play them.

Okay, its official, hunting the remaining hidden orbs in Crackdown 2 is boring me shitless.  If it weren't for the helecopter you could forget about it.

On a side note I've become quite the pro at landing that thing on a dime.

edit: I got them all.

@JPL, nice. Are you going to be available tonight? We should at least be able to get the Party Bus achievement.

@eNamrah, I will be available sort of.  You know I got my niece addicted to Buffy and she's staying back with us so I told her we would watch some tonight.  But I had already told you I would be on to try for those two four-player achievements so I will.  Just hopefully we can get it done without taking too long.

Now that the only orbs I'm lacking are the driving renegade ones I'm really tempted to go for them.  I mean its hard to turn down 70 extra gamerscore but I'm really not looking forward to chasing those effers.  Any advice since you did it already?

My advice is to always use the supercar, even though the game recommends the SUV for some of the orbs.  Most of them I caught right away, by just flooring it at top speed before the orb even begins to move.  Each orb moves in a set pattern so it helps if you know which direction they are going to move beforehand.

If we can't get those achievements done tonight then perhaps tomorrow.  It shouldn't take much time if we find the right people.

@eNamrah, thanks, you make it sound so easy I'll have to try now.  I might could use your help on the glider rings as well. I know what to do but on some of the rings I can't tell exactly where it wants you to go.

I have Crackdown 1 coming probably tommorow so we can do the co-op missions but honestly I'm getting a little tired of Crackdown's gameplay after two non-stop weeks of it, I might should have waited on renting part 1 to take a break.  Too late now though.