Names for MobileMe are available on a first-come, first-served basis. If you were an active .Mac member as of July 9, 2008 then your member name is also yours for @me.com.
As for your iTunes account, your Apple ID is separate from your email address, meaning you can change your email address without changing your Apple ID.
Names for MobileMe are available on a first-come, first-served basis. If you were an active .Mac member as of July 9, 2008 then your member name is also yours for @me.com.
I was an active .Mac member since August 2007 and my member name is not valid on @me.com.
As for your iTunes account, your Apple ID is separate from your email address, meaning you can change your email address without changing your Apple ID.
Purchases made in the iTunes store, Mac App Store etc cannot be transferred. Creating a new Apple ID simply to use .Me will see you losing all previous purchases.