Just saw this deal and thought of posting it. Price is better than the last deal here, http://www.ozbargain.com.au/node/92606, except it's not on steam.
This is the best price I've seen for Alice: Madness Returns to date.
It's a digital download from Amazon, so it's a cloud download, accessible from anywhere. If you are mainly a Steam user, you can always add a shortcut in Steam manually.
It is interesting that amazon is getting away with selling games to the 'US' with almost no region protection. Either:
1: The region-crazy-hateful publishers haven't worked out what is going on yet.
2: They are upset but amazon is big enough to tell them to stick it. Possible but surprising they don't just not offer their games to amazon (certainly similar things have happened before).
3: The publishers are starting to change their ways. Also the world is ending.