Philips Arena Interactive
I don't know if this has already been posted (didn't go through all eight pages), but I came across this site that allows you to type in your ticket's section and row and will then give you the point of view to the stage - pretty freakin' cool.
I lucked out on some tickets last week in section 104 ($150 each).
Another thing that may have been posted, the setlist for the show - I know that some of you want to be surprised, so just skip this site. The site is setlist.fm and I go there all of the time to check out an upcoming band's list of songs that're going to be played. Granted, some bands don't stick to a rigid setlist, but with Coldplay's huge production with lights, lasers, confetti canon, and everything else being carefully choreographed, their list will be the same. I'm happy with it; all of my favorite songs are on it.
Have fun everyone! SIX DAYS!