Yeah. Life keeps getting in the way, but I've been having plans to at least start emulating firmware with QEMU and poke around a bunch of publicly available firmware. The biggest problem I do see with the learning curve is the machine language, but I don't see it being too much of trouble once I grasp the basics enough to get a better idea what is going on. Finally got around to getting qemu up and running, so will try to get started with firmware once I get other more important things taken care of first.