It has been out for quite some time. If you have not tried, perhaps you should. If you already know SQL Server you are already knowing a lot. It is time to pick up and move.
Microsoft has come out with this 'How to use SQL Azure' which will put you on the right track. Well after getting on the track you need to run. This is where my book will come in handy. It's comprehensive with tons of information. Send an email to firstname.lastname@example.org with'SQL Azure' in the subject line and you can enter a raffle to get either a hardcopy or an ebook details of which are here.