Having just completed a cloud evaluation for SemiWiki I can tell you why eSilicon chose Google. Simply put, they are working harder to get cloud business. Google ($4B) is the number five cloud provider behind Microsoft ($21.2B), Amazon ($20.4B), IBM ($10.3B) and Oracle ($6.08B). There is a lot of money in the cloud and a lot more to come which is why cloud providers are designing their own chips and partnering with ASIC providers like eSilicon to get that competitive edge. Speaking of ASICs in the cloud:
Metrics Design Automation offers simulation as a service for the verification of FPGA and ASIC designs. Our SaaS business model enables you to increase your verification productivity while saving you money.