I would worry more about Heruku given that SalesForce is losing money. http://techcrunch.com/2013/01/13/marc-benioff-has-swagger-but-what-about-that-salesforce

I would worry more about Heruku given that SalesForce is losing money. http://techcrunch.com/2013/01/13/marc-benioff-has-swagger-but-what-about-that-salesforce-com-balance-sheet/ http://techcrunch.com/2013/01/13/marc-benioff-has-swagger-bu... Google is insanely profitable and uses GAE internally for a large number of products. It would take years to re-write and shut down GAE.