Wow I didn't realize there was a race religion politics section of PRE!
I'd jut like to add 2 points:
1. The abaya (black dress) and burqa (head cover) are actually cultural garments worn by the people of Arabia. They are not religious items and can/are worn by all denominations in the area. Islam does call for women to show modesty and therefore outside of the GCC you're only likely to see Muslims wearing them.
2. My thoughts are I don't think the burqa should be worn in Australia in public. Security reasons alone, and it isn't an anti-islam thing it's like why we don't wear helmets in a bank. As stated it isn't anti-Islam or religious for me. Heck I live in Abu Dhabi and have absolute respect for the locals, their religion and culture. In fact all the local Emirati women I work with wear abayas. Nationally the vast majority don't wear burqas. They tend to wear hijabs, just covering their hair. This is just a thought and I could easily be swayed hearing the other side of this argument.