The core businesses of both companies.
Correct me if I'm wrong. Apple's core business is shifting tin, whilst Google's is selling information. I can understand why any business would get cheesed off for any product to eat into their marketshare but with Google now in the mix, the customer is the real winner as we now have more choice. Both companies have now keep each other on their toes and we become the main beneficiaries as Apple and the Andriod touting manufacturers bring out new innovations to attract us buyers.
It would have been nicer if Steve saved his breath and used that big pile of cash his company is sitting on to reduce the price of their hardware.
Biting the hand that feeds IT
