If you preorder inFamous at GameStop, you’ll receive a special code that unlocks Cole’s Gigawatt Blades Power (shown above). This special code is apparently a Gamestop exclusive, and probably isn’t available through any other means. We’ll keep you posted on whether this is simply an unlock of an existing feature, and how much the Gigawatt Blades affect the overall gameplay. This offer is available both in-store and on the website.
[Source]