Remote Play on the PS Vita (Control Your PS3)

Like the PSP before it, the PlayStation Vita can access content on a PS3 and even play PS3 games remotely.

Remote play PS1 games on Vita from a PS3. I only recently discovered that this works and I'm loving it. : r/gamecollecting

PS Vita Standing Dock for HORI Remote Play Assist (6J9GSWRJS) by RetroMetro

How to Play Music on a PS Vita Game Console

PS3 hack opens up console library on PS Vita - GameSpot

PS Vita Hacks: How To Connect PS3 Controller

Why the PS Vita still matters in 2015

How to Play Your Own PS4 Games on Your iPhone with Sony's New Remote Play App « iOS & iPhone :: Gadget Hacks

Using the DS4 controller on various devices (PC, PS3, Vita, Android)

How to Use PS4 Remote Play - PlayStation 4 Guide - IGN

This is the closest you'll get to a PlayStation Vita 2