I have one of oldest babies on the March board and he just started less than a week ago. I was kind of surprised because he was hitting all other milestones early but not worried. He'd been scooting around on his butt for awhile and I really didn't think he was going to. My husband was picking him up from day care and set him down for a second so he could put his own coat on and Alexander just took off. Luckily, my husband got his phone out fast and got the whole thing on video so I didn't miss anything. Within 3 days, he started consistently pulling to a stand and cruising. It is literally amazing how much has changed in less than 7 days' time.
As much as I hate to say it, though, everyone was right. Now that he's moving around like crazy, I miss being able to sit him down and know that he'd be safe for a second while I turned my back. Not anymore!