Install it
you download the demo and then you download the full game
Yes, the demo is available for download at the playstation store. You must have your PS3 connected to the internet to download it.
You can download a demo for free
there already is on both PS3 and 360 you can download it for free
You simply CANT!
You can't.
Wait till it comes to the PS Store...
Not sure for PC But for PS3 and xbox 360 you can download it online.
After you download a demo from the Playstation store it must be installed by going to the games section of your XMB and clicking on the game title. After it has been installed you only need to click it to play
There may be a demo for it or something, but i don't think you can download it. If I'm wrong feel free to change the answer.
You can download on ps3 on playstation network or on xbox 360 on xbox live.
First you have to sign up in the playstation network (create account). Then you have to go to the playstation store. Then go to where it says demo then download any demo you want but it takes a long time.