Security hole ho!
One day after releasing firmware 3.0 for the Playstation Portable, Sony released firmware 3.01... now with anti-homebrew fixes.
I would hate to be the guy who has to come up with these fixes. You know he was just sitting back in his office chair, about to sip down a Pumpkin Spice Latte after a firmware update well done when someone burst through his door and shouted "exploit!"
I wonder if he did a coffee spit-take?
System Updates [Sony PSP]
Follow spit take on Kotaku 
