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Just a heads up but AT&T updated all their towers to hspa+ and I think the iPhone 4 is compatible with it or with the speeds and that's what's been going on. I too now have 5 full bars any where I go in town even in places when I use to only get three bars
 
Just a heads up but AT&T updated all their towers to hspa+ and I think the iPhone 4 is compatible with it or with the speeds and that's what's been going on. I too now have 5 full bars any where I go in town even in places when I use to only get three bars

Does HSPA+ broadcast signal further than HSDPA?
 
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