Gaikai (PSTV): The complete back catalogue of PS games from PS1/PS2/PSP/PS3/Vita/PSMobile, streamable to ANY device that is connected to the internet.Your ID is locked to the new controller and NOT the console. PSTV would be integrated into every Bravia TV too and any TV that bought the licensing agreement.
In fact I believe that IS the biggest announcement we will get on WED.
My guess also.
Streaming a game GAIKAI style in a home network from PS4 to handheld over a Gigabit network or WiFi Direct or even just wifi will have much less latency than from a Gaikai server hundreds of miles from the IP server head end. Depending on the type of game, some can be Gaikai served from a remote server farm and some can't, those that can't be served from a remote Gakai server farm could be served locally in the home by a PS4.
Sony last week updated "Home" to 1.75 and moved personal data from the PS3 in the home to a "Home" server. This I believe is the first step in moving "Home" to a Gaikai server model. Instead of moving each Home area's assets to be locally generated in your PS3, they will be generated in a GAIKAI server and streamed as video to Smart TVs, Networked blu-ray players and handhelds. This, I think, is to be one of the announcements on the 20th.
The GAIKAI video streaming will be via HTML5 DASH. The PS3 and other Sony CE platforms should get a major firmware update to the browser to support this. Either a separate app or browser with W3C game controller standards will be used. The PS3 is overdue for a browser update.
Sony with the above will announce their new stores, apps, Home and revamped and expanded Playstation Network. Some of the PS4 features may be announced that support the above Gaikai game streaming in the home and other streaming services to handhelds and CE platforms.
With the same software stack for the above,
RVU can be supported and it's supposed to be here NOW.
Flip the above with the PS4 as the set top box supporting GAIKAI/playstation network/PSTV instead of the DVR cablebox. So two boxes in the home network supporting all these new features (PS4 & Cable DVR/RVU). Rumored for the Xbox 720 is it's one box that does it all (Cable DVR and server to handhelds).