I saw this Plugin in my RSS reader today:
The EVA
plug-in for Virtual Infrastructure Client provides administrators a
tool to facilitate the discovery and identification of HP EVA storage
arrays connected to VMware ESX servers.Administrators
can have a global view across all storage layers (SAN array, VMware ESX server and Virtual Machines) to keep everything within a single pane of glass through the VI client interface. As a result, ESX storage
management becomes easier and faster with a lower risk of configuration
mistake.
More info can be found here: http://www.k-ante.com/page_interne.php?lang=UK&ID=plug_in_vmware
Watch a demo movie (Quicktime required): Video_Plug_in_VMware_for_EVA_EN.mp4
Source: http://communities.vmware.com/blogs/amodi/2009/06/22/plugin-eva-for-vmware
ICT-Freak.nl 
The EVA plug-in has been updated and now supports vSphere
Download link: http://www.antemeta.fr/plugin_eva_en/telecharger_EN_vsphere.php