This is a first for Finn. It happened tonight and I was there to see it! He's been proficiently cruising - stepping sideways - along furniture and even walls for several weeks now, but putting one foot in front of the other is a first. He figured it out all on his own. We actually have a little push-toy meant for this purpose, but each time I've tried to stand him up behind it, he balks. He just needed to find his own way, in his own time.
Honestly, it brings angry tears to my eyes all over again when I think back to how Eun, his former PT, used to force him to walk laps around the living room, held up by his hands, with weights on his ankles, and him crying in protest. That was just never going to work, and it was mean to boot. I just don't think walking is something you can force - as with any child, they'll do it when they're ready.
And I know Finn is still likely months away from being a full-fledged walker, but man, look at him go!