[ILUG] RHEL clones

[Lars Hecking]

 Hi all,

 Has anyone ever come across a situation, anecdotical or otherwise, where
 commerical software, or software available binary only, that works on RHEL
 does not work on a RHEL clone like CentOS with otherwise identical parameters
 (OS revision, package list, patch level, hardware etc.).

 RHEL and clones are supposed to be fully binary compatible, but where is
 the proof?

 I'm trying to assess the likelyhood of a software vendor refusing support 
 on the grounds that RHEL clones are not on their supported OS list.