You all can search back through posts and see my stress about Evan not Crawling. He FINALLY is crawling at 11 months. He went from laying on his back being pretty much useless to crawling, going prone sitting and vice versa, and pulling up in 2 weeks time. He still is a tentative crawler, more cautious than adventerous, but he's managed to smash his own fingers in a drawer and create a little mischief so dh and I figure he's not too far off base.
I Honestly think if they don't crawl early they are taking in life, figuring it out, before taking the plunge. My oldest is in some ways fearless, in some ways just doesn't "think" aka Reckless, the other two much more reticent, going to check everything out... IMHO a much better quality.
Tanya