Nope.
Note: If you want to run your fastest, mark your Agility Statistics up to 10 points. But it is not recommended to do so.
Fallout New Vegas is the fifth installment in the Fallout series. It is for the Xbox 360, PS3, and the PC.
Probably, you can hack anything.
Infamous Infamous 2 Fallout 3 Fallout new Vegas
It appears to only have a single player game mode see related link
It wasnt made for xbox but if you know how to convert ps3 games into xbox games then yes.
Quite simply, you don't. You can't use cheats on any version other than pc
Yes. Yes it is considering the game was not designed to specify one consol there is no advantage or disadvantage on whether or not you have an xbox or ps3.
Yes you can. Most Gamestops now sell code cards for xbox and ps3 Dlcs.
Not in one play through, because there are hideouts for brotherhood, caesar, NCR, you will have to play it through a couple of times.
The 'reward' for beating it on Hardcore mode is an achievement/trophy, nothing more.
Not yet. No release dates for the DLC 'Dead Money' have been announced for the PS3, but it is sure to come. The DLC was released to the XBOX Community on December, 21st 2010.
The Fallout:NV PC cheats do not work on the PlayStation 3 because you need to access the console, thing which you cannot do on any console.