Who are the next players in technology?

Recent remarks by Google's CEO have named the players as Google, Facebook, Twitter, and Apple. No mention of Microsoft or Adobe. The mutually adversarial relationships between some of these companies is the thing of legend, some more scurrilous. While those who promote the cloud downplay the longevity of local applications, the scrutinized service level provided by these vendors leaves one to wonder about putting all their eggs in one basket.