I just finished my tax return for 2010. Once again, eTax is povided as a windows-only program that doesn’t work in WINE. Below is the feedback I gave to the ATO when they asked for feedback, I suggest you send something similar if you care about not having to use windows:

The major cause of my dissatisfaction is that etax requires that I maintain a copy of microsoft windows on my computer, that I boot up once a year. This is not acceptable (at least I have a legit copy of windows, many australians do not); the software should be available either online or in a client that works on at least windows, mac and linux.

It doesn’t even work in WINE, which I futilely try every year in the hope that it has magically started working. It never does.

I rated myself as “extremely dissatisfied”, and yet also indicated that I will still use eTax next year. I wonder if that makes them more or less likely to fix it - on the one hand, all of the options are awful. On the other hand, I do still manage to make use of eTax every year…