Here is a great video preview of Sony Ericsson Xperia X1.
About Sony Ericsson Xperia X1
XPERIA X1 is the first Sony Ericsson to run on Windows Mobile (Professional) operating system, and the first of the X series. It is high-end device with large WVGA touch display, side-sliding design with QWERTY, integrated GPS, WiFi and quad-band GSM with quad-band UMTS. It will have personalised interface to change the standard operating system



05:56 – A truly “Premium User Experience” from Sony Ericsson.. LOL
I’m blown away, really. Nice vid man, fantastic.
The Xperia X1 is a bulk of crap which was developed and produced by HTC on behalf of SonyEricsson.
It features Standard HTC-connectors and is not compatible to genuine Sonyericsson accessories.
It lacks high end hardware features like a Cybershot cam.
The UI looks nice due to the Sonyericsson “Panel” software, but, as soon you got to know it, you’ll get annoyed, because its slow like hell, and WindowsMobile can not be handled without a pen (unlike UIQ).
This phone is truely crap and should not be sold as a Sonyericsson device, but as a HTC.
There’s some more information here if anyone’s interested