We think this is a veiled way of passing the buck to AT&T -- but whatever it is, Sony Ericsson USA has extended an old, crusty, TimeScape-enabled olive branch to Xperia X10 owners in the States by attempting to explain what's going on with the Eclair update 'round these parts. Basically, the company says that getting an update out in the US is way harder than it is elsewhere because of "the technical requirements that must be met" over which Sony Ericsson has "no control." The blame is levied on an "especially rigorous" testing cycle that can (and presumab