Since I left VCE four months ago, I have been working intensively on a commercial version of the open source vijava API supporting all versions of vSphere APIs (5.5 is the latest). If you have used the open source API, you know the vijava is much faster than other alternatives. Since its debut, it has been used in many commercial products from companies like Cisco, EMC, HP, etc.
My company has created products like vSearch ("Super vCenter"), vijavaNG APIs, EAM APIs, ICE tool. We also help clients with virtualization and cloud computing on customized development, training. Should you, or someone you know, need these products and services, please feel free to contact me: steve __AT__ doublecloud.org.
Me: Steve Jin, VMware vExpert who authored the VMware VI and vSphere SDK by Prentice Hall, and created the de factor open source vSphere Java API while working at VMware engineering. Companies like Cisco, EMC, NetApp, HP, Dell, VMware, are among the users of the API and other tools I developed for their products, internal IT orchestration, and test automation.