It's good to see a company clearly state that it wishes to prevent counterfeit goods from harming end users, but that SOPA is not the way to address that problem.
Most of the talk from supporters plays up the "counterfeit" angle, dragging in firemen, soldiers, etc. as examples of who could be harmed by these knockoffs, but all of the push is coming from groups who want to shut down piracy at the expense of the internet and who have nothing physical to protect. It's an ugly bait-and-switch. Fortunately, this dodge no longer seems to be working.