I also took pictures, but I won't post them because the only difference you can see is when I flex my biceps. I have more definition in them! Yay!
Well, I'm a bit sore from yesterday, mainly on the sides of my pecs and lats where they attach to my arms, thanks to all of those crazy push-ups. But still, it's no where close to the first week of P90X, where you're so sore you can't move.
I love plyo. It was a little tough getting back into it, since I didn't do a whole lot last week. But it still went well, and modified some moves to make them harder. I think the worst of today was doing the ballistic stretches at the end...I didn't realize how sore my arms were from yesterday!