PlayStation Portable to double as a cellphone?

Sony PSP cellphone

You have to look closely, but PSPInsider snapped this pic of what looks like some sort of cellphone-type attachment for the PlayStation Portable, a development which could prove troublesome for Nokia's N-Gage. Anyway, unless Sony has made some sort of crazy breakthrough we weren't aware of, this has to be a mock up. And if it's not, we're going to insist that our next Treo be completely clear.

[Via PortaGame]