Or maybe they’re out now, depends.
The PLAYSTATION Network Cards will be available at Walmart, Best Buy, select Sam’s Club outlets in October 2008, and at Barnes & Noble College Bookstores locations in November 2008. Cards are available in $20.00 and $50.00 denominations and are currently offered at BLOCKBUSTER, Pamida, Meijer Superstores and Speedway store locations.
So yeah, go get some PSN Cards to buy WipEout HD, Burnout: Paradise or PixelJunk Eden, whatever, it’s your money!
Update on PSN Cards [PS BLOG]