Sony Ericsson P400?

Sony Ericsson posted a press release introducing Tinyline over a week ago. If you go to the Tinyline site and go to SVG and choose download, you will reach the page where I got the above image from. Scroll down to notes and you will see a Sony Ericsson P400 listed. Will there be P400? I doubt it. Considering it is listed with rather old phones and SE kinda changed their naming scheme (P1). It could be a typo or a device that existed in the past but was scrapped.