Now that I think about it, next to the word shuffle, it had the same symbol that Apple uses for their shuffle iPod. Hmmm . . .

Ipod Shuffle???? I think a lot of people are taking their p90x experience to the gym as I do, however shuffle doesn't give you videos

I don't think it'll have to do with the iPod, although I may be wrong. The "shuffle logo" that you're talking about is used a lot for just showing or describing the word "shuffle". I don't think it's directly linked to the iPod or iPod Shuffle. I think it'll just be a routine where the workouts are alternated or "shuffled" around to really confuse muscles. Just a guess though.

You choose the kind of workout you want to do (chest and back or cardio) and the amount of time you want to do it and then it randomly selects the exercises for you. Sounds pretty fun. Amp the muscle confusion to the max. It's supposed to be a while before it releases though