PS3 owners will soon be able to buy PSN Plus Gift cards at local retail store. you can expect the cards to be out soon North American stores.
Information was leaked from a Target insider who says the cards are coming soon and prices will start at $17.99 USD for three months worth of PlayStation Plus access. Sony also offers a 12 month long subscription option priced at $49.99 USD. Currently, the subscription based service allows early access to some demos and beta tests, discounts on software and the occasional freebie.