No they won't. Sony has dabbled in the portable console market twice and failed. The PSP and to a lesser extend the Vita with PSTV could both be played on a TV and portable. Microsoft has no interest in portables.
But nobody's walking around with dedicated portable gaming systems anymore. Smartphones have all but pwned that market.
They ain't fail with the psp.No they won't. Sony has dabbled in the portable console market twice and failed. The PSP and to a lesser extend the Vita with PSTV could both be played on a TV and portable. Microsoft has no interest in portables.
You've never been to Japan.