So, the working name for my homebrew videogame system for infants is now InfraBaby. If anyone has any better suggestions, I would love to hear them.
Though I can't test it until my IR receiver arrives in the mail, I've built the core of the system. I've got a small Python program that reads data from LIRC, and, based on a configuration object, presses keys in Windows. Obviously I've still got some work to do to discover what codes the V.Smile emits, but I'm hoping that'll end up being relatively straightforward.
Now, if everyone was happy writing python code to configure their games, and starting up three programs whenever they wanted their baby to play a game, I'd be done. But no -- I'm coming to the realization that I've got a frontend to write, which lets you set up configurations for your games, and has one-click (or one-press-the-orange-circle) launching of games. I'm really, really itching to give the program a try, but at least a proper user interface will give me something to do while I wait for the damn sensor to come.