If your bringing it with you as a luggage, I don't think you'll get taxed. They don't ask for the value of your computers etc. at border security anyway (as far as I know)
You'd have to check with AirAsia whether you can or not and how much it would cost you. Pack it nicely and label it as fragile.

As long as you activated it while in Malaysia, there will be no problems at all.
If you try to activate it in Aussie, it might detect your IP is not the region where the product is for and not allow you to activate. Besides that, there's no problem at all. There's no law against using software that was commercially released for another region. A lot of gamers buying games from other regions would get into trouble if that is so.

No idea what a generic china power bank is. Google it yourself.
As for using an adapter, Australia uses the same voltages as Malaysia therefore electronics from Malaysia should work fine in Australia so all you need is a plug adapter. No transformers or anything is needed.
As for your friend, there are many factors that could have caused it. Overloading the plug, problems with the wiring itself,problems with the extension itself etc.

I myself use an extension cord I brought from Malaysia to use with my stuff and I have yet to encounter any problems. I find it kinda hard to find a good adapter with an earth pin before I left, so I bought one in aussie when I arrived cause I was kinda trying to be as safe as possible.

This post has been edited by Hikari0307: Feb 6 2012, 06:36 AM

It should be stated on the website how long you have to wait. If it still doesn't arrive after then, call them since sometimes there could be problems with the mail etc. After answering some security questions they'll tell you your TFN and they can send you another copy of the letter.

You don't have to, but it's a good idea to do so since without your TFN, the bank is obliged to withhold maximum tax from the interest you earn. Your TFN is an important number and should not be given to any institution or person without any justifiable reasons. Giving it to the bank is fine though.