I hate to behave like a marketing droid, but sometimes this is the only way to get attention:
Could anyone who is interested in running LinuxBIOS on an nVidia MCP55 (nForce 570/590) or other recent nVidia chipset please contact me with the name of your organization and the contact name and email address (if other than yourself). If you manage a cluster of machines or are a reseller, feel free to include any impressive-sounding data like number of nodes.
--Ed