Alphabet is just a way that Google can control its liabilities. Each subdivision can be closed off or sold if it has trouble. Not take down the other subdivisions when that happens.
Oracle is suing over Android using Java APIs, Alphabet can move Android to its own subdivision if they lose the lawsuit and close it off or sell it off and then develop a new mobile OS to replace it.
Oracle is suing over Android using Java APIs, Alphabet can move Android to its own subdivision if they lose the lawsuit and close it off or sell it off and then develop a new mobile OS to replace it.