The Hardware Compatibility Guide from VMware, that PDF-file you have located somewhere between your other important VMwaredocuments but is always outdated so you have to download a new PDF, is now replaced by an online version that is searchable. This online Hardware Compatibility Guide replaces the former Hardware Compatibility Guides for systems, I/O devices, and SAN arrays for ESX 3.0 and greater versions, as well as VMware View Client.
Check it out and thanks John Troyer from VMware for the twit!
Unfortunately, this is still a HARDWARE compatibility guide. I would rather see a central compatibility guide for hard- AND software (Guest OS, agents, plugins).