So Theo's been able to stand since at least June and he's been taking steps with two hands to hold for almost as long. He eventually progressed to needing just one hand, and then for the past month or so he's been willing to walk about 3-5 feet between two people sitting on the floor waiting to catch him. But today at 5pm he decided that he'd had enough practice, and walked across the nursery. Mom opened the doors, and off he went! Some videos for your pleasure; the long one gets a bit dull in the middle but has a wonderful point-of-view shot at the end of Theo going all over the house!