For the most part, I barely notice the incoming speed of my Internet data connections on my iPhone 4 or iPad 2. Sure, if I want to download something large, I make sure I'm on a WiFi connection. If I'm in a car, I'll think twice about attempting to download a bunch of email out of range of an AT&T 3G tower. But sometimes -- usually when I'm streaming a video or really need to get some work done -- it's painfully obvious that the tiny invisible blips of data are not riding the waves very fast at all, for no discernible reason.
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