Yeah, it's been around since 99 (actually, probably longer but unnoticed). Because both ends of the driveshaft are mounted to the chassis (front throught the tranny and rear through the differential) rather than having one end sprung (like with the solid axle), any imbalance of the driveshaft is far more noticable.

Mine was fine when I got the car, but now that I have the new tranny, it vibrates. I only notice it > 100, so... I'm not gonna bitch.