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Sprint was first out of the gate with its next-gen network. Verizon has also deployed its 4G LTE network, and AT&T is in the process of rolling out its 4G network now.
There are 4G phones out there (HTC ThunderBolt and Evo, as well as the Motorola Atrix, to name a few), but the big problem so far has been that 4G is a total battery hog. That should change when Qualcomm ships its next-generation 4G chips for phones and we expect to see an iPhone 5 with 4G capabilities.
Chances of implementation: 80 percentPhoto by: iphonespies.com
With the iPhone 4S, we didn't get the redesign that a lot of people were hoping for. Well, it's almost certain we'll get it with the iPhone 5. Will it be thinner, with a teardrop design? Look more like the iPad 2? Bigger screen?
Chances of implementation: 99 percent
Photo by: culttofmac.com
Caption by: David Carnoy, CNET
That said, people don't seem to want the iPhone to get any bigger or lose any battery life. We're hoping Apple can come up with the right balance, but as you can see from this mock-up, going to 4 inches makes a significant difference and is probably the optimal size for a smartphone screen.
Chances of implementation: 50 percentPhoto by: 9to5Mac