Apple/AT&T customer William Gillis was unhappy with the performance of his iPhone 3G. So he filed a lawsuit. But what's unique in this case is that the lawsuit isn't complaining just that the iPhone 3G is underperforming, but that the iPhone 3G is underperforming because it's been consciously oversold in a plot by AT&T and Apple.

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 http://gizmodo.com/5044753/apple-and-att-sued-for-selling-too-many-iphone-3gs