Z is 8 months old today... and still not crawling. But he is so darn close! He can scoot on his butt a little bit at a time and end up on the other end of his play mat. He also does this thing where he will stretch himself farther than I ever imagined a baby could stretch without falling over, until he reaches his desired toy.
Notice how he is sitting... with his legs folded in front of him. If he stretches far enough he can balance on both knees for a couple seconds before his legs flip out from under him and he falls on his tummy. Poor thing. He doesnt seem to be too frustrated at the fact that bouncing on his butt doesn't get him anywhere, so I am hoping that one day he will get frustrated enough to actually go somewhere. But for now I guess I should just be happy that he is happy, even if he is immobile. :)