I heard about a study by a physician that said that babies who crawl early and longer have higher IQ's. That combined with not wanting to have two babies able to walk and get into even more stuff, led us to let them crawl until they decided they were ready to walk! Lol! I guess now they're finally ready. Here's a video of some of their first steps! Oh, and for some reason they just love the camera and wouldn't leave it alone, lol!
P.S. If you click the star looking icon in the bottom right corner of the video, you can change the video to HD (1080p)