Even the PS3 was 3D after it has the latest updates and is also connected to a 3D HDTV. Most HDTVs top models are released with 3D capability and so is the PS4 if it is connected to one of the 3D HDTVs otherwise it is limited by what you have connected it to.
No
The PS3 will play 3D movies on a 3D HDTV ot the new 3D display for PS3. There is no PS4 It will also play 3D games. You only need to buy the 3D games and a 3D HDTV and get the latest PS3 updates and any of the PS3s will play 3D. Without a 3D HDTV you can not get a 3D picture
real 3d
a cylinder
Hopefully, because major 3D TV makers are trying to do it. Recently CES small glasses free 3D TV was presented by Sony.
Yes it will just like the PS3. There is no PS4 until it is released forecast for December 31 2013, but without a HDTV with 3D capability to view in 3D you can not have a 3D picture. Everything will always need 3D HDTV or monitor to get 3D. The PS3 has 3D already if it has the latest updates, but just as you can not have a 1080P HDTV picture on a 480i standard TV you need a 3D TV to get a 3D picture. Most new top HDTV models from all the major brands are only available with a 3D capability even though you need not watch anything in 3D on them and can still watch everything including 3D programming in 2D. Just like a couple of years ago you needed to have 1080P if you purchased the top models the brands offered. Sony's newest top model is not only 3D but something they call 4K Ultra HDTV and said to offer 4 times the detail found on 1080p Full HD
Comfort is a personal matter. You have only one way to find out and that is to wear the glasses and experience 3D television from a number of different manufacturers.
they cost 3,000,000 dollars for a pair of 3D glasses
50 dhs will be charged including glass
Toshiba are selling an auto-stereoscopic 3D television (no glasses needed) at around $10,000. For those of us with a more modest budget, why not audition Samsung, Sony and Panasonic, all of whom offer full HD resolution with some of the lightest glasses around. LG have even lighter glasses because they use the throw away type as used in cinemas but the 3D resolution on an LG is only 540 lines to each eye, just half that of the premium brands.
Glasses free 3D TVs are not available yet (apart from 2 models on sale in Japan only) so at this point there's no contest.