While McCain's personal indifference to technology , difficult-to-defend tech policies, personal vendettas and general oldness all come to mind as reasons for this decision, ...

I will never understand how we got past the point of saying "Obama's general blackness means he doesn't get so-and-so" and arrived at saying "McCain's general oldness means he doesn't get so-and-so." Racism or ageism, we've got a ways to go either way.