Q: My iTunes account has a Yahoo e-mail address as the primary e-mail and ID, however in 2011 I opened a free iCloud @me.com e-mail account when purchasing an iPad. The problem is, I now want to delete my useless Yahoo e-mail account and move 100% to my @me.com e-mail but iTunes won’t let me have my @me.com address as my primary e-mail address on the account? iTunes allows me to setup my a @me.com as a “secondary” e-mail and in fact I can even…