Apple ID and iCloud: Primary email address?

I have an Apple ID, (for the sake of example) falconer@gmail.com.

When I signed up for iCloud with that Apple ID, I activated Mail & Notes, which prompted me to add a new @me.com email address to my account; I chose (for the sake of example) falconer@me.com.

That new address I added for Mail & Notes, falconer@me.com, currently shows up as an "alternate" email address when I log in to manage my existing falconer@gmail.com Apple ID.

When I try to change my "primary" email address to that new falconer@me.com address, I get the following error, which seems outdated as it still refers to MobileMe:

"You cannot create an Apple ID using a MobileMe account. If this is your email address, it is also your Apple ID."

How can I make the new falconer@me.com the "primary" email address on my Apple ID, so that correspondence from Apple no longer gets sent to my Gmail address, but instead gets sent to my new iCloud address?

Who else is experiencing this issue?