How to check .me email address availability

I am thinking of moving my wife and me from our personal Google Apps domain account and want find out the availability of an email address on .me for my wife and me. I want them to be similar, such as first.last@me.com or firstlast@me.com, but I don't want to setup one first and find out the other is already taken for the same configuration. E.g., giving me first.last@ and her firstlast@. Is there any way to check compatibility before setting up the actual .me account? I suspect if I choose a name and iCloud accepts it, then she chooses the same format and it doesn't accept it, the process can't be undone. We have a very unique last name so I'm hoping it won't be a problem, but wanted to ask anyway.