We've already published a pretty exhaustive review of Sony Ericsson's Xperia X10 some five months ago, but it's taken until this month for it to reach AT&T's network and retail chain. A lot's changed in the mobile phone market since then -- the iPhone 4, the EVO 4G, Dell Streak, numerous Verizon Droids, and so on. Does the X10 still compete? Read on to find out.Continue reading Sony Ericsson Xperia X10 for AT&T review