Sony’s Media Go software is also used to synchronize content between your computer and Sony Ericsson handset. That’s why Sony also lists compatibility changes with Sony Ericsson phones in the change log when providing new updates. It seems like they’ve let a few phones slip.
In the version 1.3 Media Go update, the change log mentions “Xperia X10, U5, and J10″. We already know the X10 officially, but the J10 and U5 haven’t been announced yet. The J10 is also known by the codename Susan and the U5 is Kurara, which has been leaked numerous times now. See for yourself here.
Via se-blog