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Just as more and more 3G enabled mobiles have been making their way to States, out comes Shanghai with their big, bad 4G network. According to the China Daily, Shanghai ran the world's first 4G trial yesterday. So what does 4G tech bring to the table?

Well, aside from faster speeds and better data services, it has the potential...

to bring high definition broadcasting to your mobile. So instead of getting rear ended on the highway for talking on the phone, you'll get rear ended by someone who was watching HDTV on their phone. The trial cost Shanghai around $19 million US and Samsung has already said it could deliver 4G mobiles by the year 2010.

Shanghai Stages 4G Telephony Rollout [Yahoo]