Physical copy in Australia is available 2nd of April, at least according to Electronics Boutique website (from their home page you need to go to pre-releases).
Now I just need to work out a way to get down there before they close up early on Thursday due to Friday being Good Friday. If I can't, I'll have to wait until the 4th.
@Playalot someone on the official forums (Australia/New Zealand section) said that because April the 3rd is Good Friday that they are going to be available April the 2nd in NZ. But that may have been the physical and not the digital version.