If you look at the fine print its interesting yet worrying, especially the highlighted parts make this a not so great deal.
"Promotional Offer expires May 31, 2012. Redemption code must be used within 90 days of issuance and is not transferable, nor redeemable. Limit one per customer. Offer for purchasers of Sony PS Vita 3G/Wi-Fi only. Your promotional 250 MB session automatically starts upon expiration of your 1st session plan, if you have activated the redemption code. Offer redeemed is for 250MB DataConnect Pass session only, regardless if you are on the 250MB or 3GB DataConnect Pass plan.) AT&T not responsible for taxes or lost redemption codes. Plans automatically renew, so after your promotional session expires, automatic renewal of your 1st DataConnect Pass plan selected will take effect and you are responsible for charges, unless you cancel auto-renewal before the plan renews. DataConnect Pass Plan: Time begins expiring immediately upon purchase/activation whether you are using the service or not. Once your time expires or your allotted data is used, whichever occurs first, your data access will cease. Coverage not available in all areas. For information on prepaid data plans, visit att.com/buyasession and for full terms, see Session Based Wireless Data Service Agreement at att.com/wirelesslegal."
Sign up today and receive a free game:
1. Select and sign up for an AT&T DataConnect Pass plan.
2. Login to your PlayStation Network account on your PS Vita.
3. 30 days after your DataConnect Pass activation, you will receive a game voucher code redeemable on the PlayStation Store.
*For details and limitations go to us.playstation.com/psvita