Pre-modded firmwares would not only be fun, they'd be ridiculously useful

Imagine if you could just download a file, restore it with iTunes, and that's it. You're jailbroken, ready for unlocking, ringtones, whatever.
If we could use the same protocols to restore the image automatically as well, that would be the ultimate one-click solution. I suppose if someone really has the time and the experience they could reverse-engineer iTunes' algorithm... but I doubt anyone is really that good at ASM...
Of course, that's all wishful thinking I guess.