Overall not everyone can run i686 for whatever reason. The fact remains IMO
that there is still a fair amount of need for an i586 image regardless of it
it's for fall back issues or run natively I also believe that this isn't
catered for by Centos 4 with support that run's out in ~4 years.
But surely we should not forget the basic essential of the CentOS Project - it's equivalence to Upstream's EL. If Upstream support an i586 in their EL 5 then, yes, CentOS should.
Manuel has put forward a valid argument for CentOS 5 i586 support but it should not be at the detriment of the CentOS Project's core ethos. Perhaps i586 support could be provided as an offshoot (which, given time, will become a dead-end). Support which Manuel, and like minded persons, could provide (under the watchful eye of one of the core developers) perhaps?
Alan.