The guys over at MacTalk Australia have posted a couple of images of a supposedly leaked Optus document detailing the pricing for the new iPhone 3GS. At this point it's not exactly confirmed, and probably won't be until Optus want it to be, but it does look legit.
Among the nuggets of information in the document, we've got Optus launching visual voicemail (for free!), a $50 a month add-on for unlimited data (including tethering), and an as-yet undisclosed upgrade path to the 3GS.
As with all rumours, take this with a grain of salt until we get official word from Optus. And for more, head to the Mactalk forums...