thx for the reply, i think i can at least use it with my friends who live inside Iran cause my ping inside of the country is like 10 to 20ms.

because you can either take control of player 1 or be player 2 on local coop,  it will still stream the same game. 

Sounds reasonable, but its not for me - i gotz shitty internet

That's not what I meant. For example, if the next assassain creed and the next call of duty is "shared" 1m times each.

50gig X 2 millions. This surely would affect PSN servers negatively, more traffic and server load and so on. Impractical in my opinion. 

Streaming is the convient and the cheaper option for SONY. Otherwise, the feature wouldn't be free.

yea, the main bottle neck I see with this is the game owners upload speed - dl speed usually are high enough to receive a 720p+ videostream feed, but uploading that could be an issue for many people

There just has to be some other catch to it...other than your PS4 being unusable while your buddy is playing your game, idunno, gotta be something.

But I don't think there is.

This is the same idea as Remote Play on the Vita or PSTV, only a bit "remoter" and on another account (thus the need for time limit).

Oh there is a catch but they've mentioned it once already, one of you has to pay for this service via PS+. But we all kind knew that anyway.

I don't expect it to be used that way anyway, I half expect it to be used more in the lines of "Help me get passed this boss I'm stuck on." or "Try out this game I just bought so you can get it too and we can play together."

These are the kind of social gaming things Sony wanted to accomplish. And they sounds great.

True, I feel that share play will automatically scale video upload quality based on your internet speed. I can see it uploading at as little as youtube quality 360p/480p with those with really great connections being to stream at as high as 720p.

yeah, it should be killer.    as i understand it this is basically psnow or psvita's remote play except from ps4 to a friend's ps4.  basically 1 screen is rendered based on the host's ps4.   you're right that not all co-op can work this way.   their will still be a place for online co-op in things like resident evil where you wouldn't want to split a screen if you didn't have to but games with couch co-op but no online co-op now have online co-op on ps4.

i'm talking about games like LBP3, pixel junk shooter, mercenary kings, guacemelee, ect.  they already support couch co-op and playshare allows me to stream my screen to a friend and play virtual couch co-op.   a lot of these indies aren't good at writing online code so they either don't or don't do it well.   

basically, i'm thinking about pupeteer.  LoVEd the game but could never plat because it doesn't have online co-op and i don't have friends that can come to my couch often.  this would have allowed me to plat that game.   sooo much awesome.