[champ052005]

I went into my Radio Shack and the manager was pretty cool about stuff. She said the $20 accessory gift card had to be used when you are picking up the phone.
But after talking to her, she said that she could transfer it to a regular $20 gift card so I could use it on anything or buy an accessory on a later day.

Just a heads up, if you don't want to buy the accessory that same day. (I'm sure they will come out with more accessories days following the release.)