I saw a link to the application right on airtran.com.

https://creditcards.chase.com/a1/air...2loyaltycorner

32 bonus credits after you spend $2,000 in the first 3 months of opening
$69 annual fee.
2 CREDITS EVERY YEAR after your Cardmember Anniversary
Get 2 AirTran® Airways Business Class upgrades after first purchase

As everyone knows already, transferrable to Southwest.