iPhone 4 availability in the stores?

I want to get the iphone 4 tomorrow, but im wondering if all the stores (Apple, Wal-Mart, AT & T) will by then or if theyre not always. I heard somewhere that AT & T will have more tomorrow, but I'm not sure. And what would you recommend to go first?

Well, I think you should call before you go and just check which stores have in stock.

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