Not exactly, but I haven't seen that page, so thanks for linking it.
In the downloads section, If you select 'VMware vCenter Server 4.1 and modules,' then choose 'Related Open Source,' you will see these listings...
This is implying that there is a vcenter 4.1 for linux... the community page you linked only talks about vcenter 2.5 and has many posts discussing 'wanting' it for vsphere 4.
Anyway, thanks again though, and if you or anyone else have further input, that would be fantastic.