AutoResponder, the popular jailbreak tweak that allows users to set up automatic replies to incoming text messages, has today been updated to introduce support for devices running Apple’s latest iOS 6 firmwares. Now called AutoResponder 2, the tweak also has 50% off for a limited time for those who haven’t yet purchased it.

In our Ten Killer Tips for iOS 6 feature, we showed you how easy it is to reply to a phone caller with a text message in iOS 6. When the call comes in, tap on the little phone icon in the lower right and slide up. You’ll get the option to either reply with a message or have your iPhone remind you to call the person back later.

If you choose to reply with a text message, you get a couple of built in replies–Call you later, I’m on my way, What’s up–or you can type a custom message. Ever wanted to change those pre-written messages? I know I have. Here’s how.