iPhone 4 use the AT&T 4 G?

Apple iPhone - iPhone 4 be able to use the AT&T 4 G?

iPhone 4

Will my iPhone 4 be able to use the AT&T 4 G network when it is available?

iPhone 4
True 4G/LTE? No. ATT recently said that they would be rolling out hsdpa+ like T-Mobile did and the iPhone 4 does support that.