I was afraid that Finn's surgery would set him back some, but he's not only healing nicely, he's picking right up where he left off as far as progressing developmentally. He's doing very well with independent sitting - he seems to be able to hold it for longer and longer periods of time and can even compensate when he starts to topple (sometimes).
I've been thinking lately about the whole developmental timeline thing, and how easy it is to become distressed about the delays, especially when you start comparing your child to someone else's child (and I do it, I totally do it, even though I know full well how futile and foolish it is). But it hit me today, as I watched Finn sitting and banging on his little piano, that if I just look at Finn and compare him to himself, and himself only, I am able to celebrate what he's able to do, what he's achieving and trying to achieve. I realized that it's not like I'm sitting here thinking, "Geez, I wish he could have done this two months ago." What I am thinking, instead, is, "Yayyy, Finn, you're doing it! Way to go!!"