While it is understood that RHEL <i>supports</i> only a limited subset of hardware configurations, it would be very very nice to have i386 and i586 kernel packages, even if unsupported. We've got a large and diverse user community, and no shortage of i586 machines that have been left behind in the upgrade to RHEL 3.0.
This is a feature request, not a bug.
Internal RFE bug #128671 entered; will be considered for future releases.
We're not planning to add i386/i586 kernel packages to current or future versions of RHEL.