The indie software scene is pretty good in the Mac world. No, I'm not talking about the iPhone here. The iPhone hype will soon die out and we'll see more useful applications and fewer fart buttons. I'm talking about desktop software here.

I don't know how well indie developers in the Windows world are doing, but I'm sure they're making respectable amounts of money, too.

(There isn't enough commercial software for Linux to say anything about the Linux software scene.)