According to a "trusted source" reporting to Engadget Mobile, AT&T is slated to get the Sony Ericsson XPERIA X10 in fiscal week 30 of 2010, which would coincide with the late July/early August release date.  Of course, things are always subject to change (AT&T has dropped Sony Ericsson devices in the past) - and in the wireless world, releases can change on a last minute basis.

While it's a rumor in the finest sense of the word, an 850/1900 MHz 3G version of the X10 does in fact exist in the wild (the one that we reviewed was one of them), so it's entirely possible.  Add that to the fact that AT&T is building out its Android options, and it sounds reasonable to me.  Let's hear from you - does the Sony Ericsson XPERIA X10 interest you, or are you holding out for another Android device?  Sound off in the comments!

Via Engadget Mobile