Bevan absolutely correct about staying safe people.
To answer some questions, my understanding is:
CAR233 applies to everybody. Basically, it means OzRunways is now an approved source of the equivalent paper. You may (like me) want to carry an extra device and/or a print-out too. Doesn't specify size of device required.
CAO 82.0 Appendix9 are the new rules that apply to
AOC holders, but also recommended reading for Private pilots to stay safe. They mandate 2 devices in cockpit, a company EFB administrator, min device size, etc. CASA Summarise this in an easy to read CAAP.
Please direct all questions to CASA who are the subject matter experts on this. They have a FAQ here:
Civil Aviation Safety Authority - Electronic Flight Bag (EFB)