I saw VSC 1.0 was released today. I'm trying to install it on our vCenter 4.0 server..it gets almost to the end of the install, then rolls back and ends with "NetApp Virtual Storage Console for VMware vSphere setup wizard ended prematurely because of an error. Your system has not been modified."
An MSI installer log is attached.
Logged in with a domain admin account, which is local admin and has full access on vCenter server.
I had the same issue installing on our vCenter server, 2008 x64 Standard using RDP, when I logged in on a console session (is a VM so through VI Client) it installed without successfully - might be worth trying
Forgot to mention that I had to open TCP port 61922 in the firewall on the Virtual Center server in order to run vSphere Client with the NetApp VSC plugin enabled from another computer than the Virtual Center server itself locally.