In the UK, France and Germany, Rock Band is available now - but only for the Xbox 360. Other versions will arrive later “this Summer”. There is still no news for the rest of Europe, nor Australia.
Seems crazy, with copycat Guitar Hero World Tour preparing for a pre-Christmas launch. Of course, I still think PS3 owners should import Rock Band if they’re sick of waiting. I paid a lot less than £180 / EUR 240 - and that was with super-expensive 7-day International shipping from the US to Australia.