Heading into next week’s Worldwide Developers Conference keynote, where Apple has announced that it will officially unveil iCloud, this is a good time to share a few quick thoughts for discussion and debate. Goodbye, Me.com? While Apple is surely going to fold part of the existing MobileMe service into iCloud, it seems highly unlikely that the company’s @me.com e-mail addresses are going to go away. That two-letter top-level Me domain…