This is the first version of this fling and the installation is command line based configuration and installation.
This version only has a limited set of functions, but it will be interesting too see how this client will develop in the future, hope that it will go forward like the ESXi Embedded host client, that is now included in the newest ESXI 6.0 Update 2.
The fling can be found here: https://labs.vmware.com/flings/vsphere-html5-web-client
See more information here: https://blogs.vmware.com/vsphere/2016/03/vmware-vsphere-html5-web-client-fling.html
Note: there is a build in feedback feature in the client, use it so we can get a great new client, or comment at the fling site.