Is This The X2?

"A tipster tells us that the device you're looking at here is Sony Ericsson's codename "Vulcan" -- better known as the X2 -- which would presumably replace the X1 at some point in the next few days, weeks, months, or years. Though the picture's small, you can clearly make out the X Panel button in the lower left of the phone's front and a Windows key in the upper left of the keyboard..."

Hmm, Engadget seems to have a line on a possible successor to the X1. Time will tell with more details, so for now file this under "pretty picture" and "nice rumor".