Is Sony Ericsson eyeing the netbook market?

According to a "reliable" source cited by Netbook News, the mobile phone manufacturer / adorable couple known as Sony Ericsson is looking to follow Nokia into the netbook (or is that "smartbook?") market. There's not much more to this story at present, although it does make sense -- so we'll take it, with the proverbial grain of salt. And while we're on the subject, does anyone have any more info on the PlayStation Phone?

[Via Register Hardware]