Goog ex ceo is probably selling his stock to buy aapl because it's cheap. Apple is increasing their buyback.
Lot's in the pipeline for Apple (iWatch, iTV, EyesFree, larger screen iPhone along with yearly rotation cycle of all other existing Apple products). Not to mention a possible China Mobile deal and continued growth in other countries. Apple is a cash generating machine with literally so much money on hand, they don't know what to do with it.
Anyone considering shorting aapl should just give the money away to a good charity instead.