Free WiFi on Delta Flights

If you are flying on Delta Airlines during the month of August 2011, you can get free Gogo WiFi on the flight (most planes are equipped) Just use the promotional code DIETCOKEGOGO during checkout.

I can't find information verifying this code because from the information I found about the deal states it displays in a banner ad for Diet Coke on the Gogo homepage during flight.

There's an ad on the GoGo login screen. It's free for the month of August courtesy of Diet Coke. And unlike the FedEx promo a while ago, there's no video to watch. Just use the code DIETCOKEGOGO. (Originally posted on Flyer Talk Message Board)

UPDATE: As I continued to look for verification about this deal, I found the following Tweet from Gogo's twitter account.

@DietCokeUS @Delta ^MM Enjoy your free 30 minutes :]

Source: Hunt4Freebies