We all know Apple has the cash on hand that would enable them to pull off a dramatic coup, and no one thinks the at&t match-up is worth spit... it makes one wonder.
Anything is possible, but I wouldn't bet any money on them buying Sprint nor would I count on them buying anything in the 700 Mhz auction. They are not a telcom. Would they like to do it? I'm sure they would but it would be a real gamble.