A report confirms that AT&T has begun to test enhanced 3G services in Chicago. The enhancements being tested give devices supporting HSDPA a theoretical peak 7.2Mbps download speed versus the 3.6Mbps of the current network. The report did not mention much about how upload speeds might be enhanced.
Unfortunately, this news might mean very little to current iPhone 3G users since the Infineon chipset in the iPhone 3G may not support these faster speeds that could top out at 14.4Mbps. A future chip update may allow future iPhones to support this speed or higher.
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