Salesforce.com (NYSE:CRM) has cancelled plans to build a giant new headquarters in San...

Salesforce.com (NYSE:CRM) has cancelled plans to build a giant new headquarters in San Francisco, and investors are skeptical of the company's explanation that the decision was due to faster-than-expected growth - especially since it has already spent $278M on the project. For now at least, Salesforce is coping with its growth by leasing another 400K square feet of office space in the city.