Sony Ericsson has confirmed today that the XPERIA X1 will indeed run Windows Mobile 6.1. They have also re-confirmed that the X1 will be available “in selected markets” second half of 2008. There is still no mention of 1700 Mhz support.

It is expected that Microsoft will finally launch Windows Mobile 6.1 later today at CTIA.

Read the full press release.

[Thanks Jeremy.]