Good Guys are currently running an in-store offer of Telstra 3GB Pre-paid micro-sim starter kits for only $10.
The kits usually sell for $30. The 3GB of data will expire 30 days from the date of activation.
It’s worth noting that you can also share the data connection among other Wi-Fi enabled devices by turning your iPad into a portable Wi-Fi hotspot, making it a handy backup in the event your primary internet connection goes down.