Chad Sakac talked about it end of November, read my blog post here.
The application requires VMware vSphere Client 4.0 and Microsoft Visual J# 2.0. For your information, you can use a vSphere Client to connect to your ESX 3.5 environment and manage it, vSphere Client is backward compatible. EMC Storage Viewer 2.1 also requires EMC Solution Enabler 7.1 or better.
Once you have all that in place and successfully installed, you can go on with the EMC Storage Viewer 2.1 installation. You can upgrade an older version, no need to uninstall anything prior this setup. It installs itself in your VMware client installation path, under /Plugins.
For those who are new to this product, please read Chad’s blog post. It is outstanding and full of useful information and usual with Chad, it’s a long post also but it worth it definitely!