Voivo said that they've known each other since elementary school. Have been working together for 4 years when the idea of Skype hit their heads. They know each other's weakness and advantages very clearly. Voivo was managing the project with the other three focused on architecture and implementation.
Financial freedom gave the former Googlers in this article wide latitude in deciding what to do with their lives. The reasons for leaving are many: Alack of new challenges, ambivalence about the company's growth and a desire for a career change are just a few.