Here is an excerpt from the email i received when I inquired about this:
Thank you for writing back. I understand you would like to know if NFL Sunday Ticket is available for Playstation 3.
This is available for purchase on Sep 1, 2012 through your PS3 at the PlayStation Network Store. This offer is for $299.95 from Sep 1 to Oct 28, 2012. PS3 follows the same game availability rules as NFL Sunday Ticket with one exception: Game availability is based on the device location instead of the DIRECTV service address.
You should have the following:
1. Sony PlayStation 3
2. Broadband Internet connection: Over 700 kbps download speed from your provider gives the best possible picture quality for NFL Sunday Ticket games.
To use the PS3 to login and access NFL Sunday Ticket games (each Sunday beginning Sep 9, 2012), you may call Sony for support, orders, billing, etc.at (800) 345-7669 or
http://www.us.playstation.com/support.
Subscribing to this feature allows you to watch your games anywhere in the United States in your own convenient time.