Microsoft just enabled the @live.xx signup! Go grab yours now! http://get.live.com/getlive/overview for the local domains (eg @live.co.uk) or use the following link for @live.com - @live.com signup
... Signup is still somewhat buggy as it is being rolled out so just bear with it.
Tip : You could also try this link to get an @live.ca account (in french)
Source : www.liveside.net