Xbox LIVE Rewards had been restricted to UK and US residents but now Australian ( and perhaps New Zealand ) users can enjoy the benefits of the programme. Of course the reward options might be a bit different across all regions but the core aspects should be the same. You can earn Rewards Points for doing what you do best : having fun on xBox Live ( and completing surveys ). You can check out MyRewards page for a breakdown of all you can do to earn those extra points.

Content of the email I received after the break

Hi Cyb4n,

It’s time to recognise you for all you do on Xbox LIVE. Join now and begin earning Microsoft Points for renewing your Xbox LIVE Gold membership, spending on Xbox LIVE Marketplace, watching films and giving us your feedback!

It’s easy, quick and free to join! Sign up by 22 September 2011 and we’ll even get you started with a bonus of 20 Microsoft Points just for joining.* But that’s not all! If you’re one of the first 10,000 people in Australia to join, you will also receive a 1-month Gold membership for Xbox LIVE, a $10.95 AUD value!

See you soon,
Xbox LIVE Rewards Squad

I am not sure if you can join without an invite , try your luck here : http://rewards.xbox.com/. It could also be available in other regions , drop us a comment if its avilable in your region