A couple of images of a Sony Ericsson device running Window Phone 7 has been running around the Internet.
Currently Sony Ericssons' main focus is on Android smartphones. But during Mobile World Congress earlier this year Sony Ericsson said they're not bound to one particular operating system.
The unknow Sony Ericsson phone is a QWERTY model with full four rows of keys. The WP keys are viewable below the screen and the phone is charged with a micro USB cable. The origin of the photos are unkown, but it seems to be captured by Mr. Blurycam on the usual tidy desktop we have seen leaked images from before.