Prepaid mobile users rarely get a good deal when it comes to data rates on their phone. From November 5, Optus is changing its prepaid policy, charging $1.32 per MB or part thereof rather than per 60KB or part thereof.
Most Optus prepaid plans include a set amount of data, but the rates apply once you use that up. While the new rules still means you'll get slugged a minimum of $0.60 every time you connect, at least you'll get a bit more data for your pains.
Until the end of February, Optus is also increasing the amount of data included with various top-up amounts. Hit the link for details of what rates apply to each plan.