Remote Play on PS VIta
Just back from spain and this feature really impressed me.
Sitting at the poolside and streaming games from my PS4 in Sunny ol' Scotland to a villa in the south of spain with minimal lag was brilliant!
Really cool feature to be able to remotely play your PS4 games from anywhere in the world (with a decent internet connection)
At home the PS4 is ethernetted up to a good speed Fibre Optic broadband and at the villa I was getting about 6Mb/s down and 3 Mb/s up and it worked flawlessly.
Played a good few hours of the new Batman game (which is brilliant) as well as a few old favorites and all worked a treat.
My Vita generally doesn't get used much but the stability and quality of this service really opened my eyes!