4G iPhone? Yes, With This Sleeve You Can Get It

"We've seen our fair share of sleeves and cases in the past meant to graft new functionality onto an existing iDevice, the most obvious example being the Peel 520, which transformed any iPod Touch into a 2G iPhone 4. It was only a matter of time, then, before we could expect accessory makers to make a go of transforming the iPhone 4 into the iPhone 4G. Now they'd made a go of it, but sadly, it's South Korea only right now... but expect it in the United States soon."

Basically it is a battery and WiMax modem combined into an iPhone 4 case. You get up to 5 hours of 4G broadband capacity per charge, and all it will cost you is about $120.00 USD. But you can only get it in South Korea now, and if it came to the US it would be associated with Sprint since they have the only WiMax network. But who nows what will happen in the next year and a half, which is when it is expected to arrive here in the US.