Why Sony Has Never Pursued Another Handheld Console Like the PSP or PS Vita

Sony PlayStation Vita review - The Verge

Sony Reportedly Working On Next-Generation Handheld Console

The Reason Sony's PlayStation Vita Was A Failure

Vita Means Life - Looking Back on the PlayStation Vita

Microsoft And Sony Need New Handheld Consoles, So Who Goes First?

PS Vita's Worrying PS Store Issues All Resolved

Sony Rumored to Be Working on New Handheld Gaming Device - CNET

Sony: Every Handheld PlayStation Console & Model, Ranked

Heres Why Sony Will Not Be Making Anymore Handheld PlayStation

Rumors Swirl Around PlayStation as Handheld Console Tipped For

No plans for a Vita successor, Sony says