If ever there were a place for using the phrase "it's about time," this would be it. If you'll recall, we heard rumors that Sony Ericsson's Xperia X10 would be headed to AT&T as far back as November of last year, possibly proving just how grueling the certification process is for getting a handset onto Ma Bell's network. Those whispers flared up again back in April, and our hunches about yesterday's tease seem t
