I don't think charge backs are a good idea... don't ruin this for the rest of us who haven't had theirs sent out yet. Let's all be patient... together.
While I am probably going to ride this out, I rode out my Pandora pre-order. Now I am being told that I should pretend I never made a pre-order (so I shouldn't feel bad about losing $400+) and be grateful for the opportunity to drop hundreds more dollars to finally get mine by people on their forums who didn't get screwed as badly as I did.
Hearing that the Kickstarter money is gone is giving me flashbacks...
I don't blame anyone who decides to pursue a chargeback. I will probably also never back a hardware project ever again.