ZyngaCEOMarkPincus, who was supposed to speak on the first session, has been replaced by Founders Fund managing partner and Forbes cover boy Sean Parker.
According the Bay Citizen story, ZyngaCEOMarkPincus and CFO David Wehner told Mayor Edwin Lee that unless they get the tax break, they will turn their 270, 000 square foot office into a call center and move their corporate offices and programmers to the Valley.
"We're excited to partner with American Express to invent new ways for people to experience Zynga play in more parts of their day, " said MarkPincusCEO and Founder of Zynga.