Here's some light reading, or skip to the video of the guy riding the lime green hardtail:
good article that and one that i agree with.
was also quite funny reading the PB readers responses trying to justify their big bikes and explain how without their big bikes they wouldn't have the confidence to ride the drops, berms and jumps that (they believe?) they do.
edit: amongst the people i ride with i'm one of the quickest (where's my trumpet?). i'm also only one of two out of 10 that rides a hardtail. the other hardtail rider says he rides slow because he is on a hardtail, yet he still isn't the slowest. the guy with a 6" Trek is.