Foxtel's on a platform-expanding roll at the moment. Having rolled out a download service earlier this month, it's now offering its mobile TV service to Telstra iPhone users via a dedicated client.
The mobile service has previously been available on other devices, but the shift to the iPhone (with its larger screen) is likely to make it more appealing. Telstra also claims that the iPhone version will include enhanced video streaming. That said, it's not cheap; a day pack is $4, and a monthly subscription is $18, and—inevitably—it's limited to Telstra customers. If you test it out, tell us how it goes in the comments.