9/11/08
"According to a Sony Ericsson rep at the CTIA Wireless trade show today, the X1 will not have separate European and US hardware versions, so the UK model will work well in the US. Therefore, we expect that specialty importers like Dynamism.com will start selling the Xperia X1 to US customers on, well, September 30."
http://www.gearlog.com/2008/09/ctia_...son_xperia.php