Not to mention he released the vulnerability last Thursday, and we're only hearing about an exploit now. I'd really like to know what definition of "Zero-day attack" they're using, because I certainly can't reason out what it is.

This is all I have to say on the matter: http://en.wikipedia.org/wiki/Embrace,_extend_and_extinguish

We're owed access to other people's work, because they openly published it to the world. The point of copyright isn't to keep your ideas yours; that's easily enough achieved by simply not publishing your ideas. The point is to give you recompense for giving your ideas to the world.