Great news! Folks from Mobiholics found the following at the Handango Partner Newsletter:

It seems like mid-September is the target XPERIA X1 release, in time for the holidays!

The XPERIA X1 will also have the Handango InHand service when it launches:

Handango InHand offers free and convenient access to mobile content directly from your smartphone. InHand simplifies the process of finding, installing and purchasing the content you want.

[Thanks Jeremy!]