Ars' sources have discovered a new hidden feature in the iPhone 3.0 beta software. This week's super-fun find is voice control and feedback. Using the codename "Jibbler," the new feature could potentially allow users to control their iPhones using the power of their voice.

The new services were discovered to be tied to the SpringBoard of the iPhone and could potentially bring a feature to the iPhone that many older phones have had for a while, voice dialing.

Whether these new features will make it into the final version of iPhone OS 3.0, or if the features will make it to the iPhone 3G or OG iPhone are unknown.