Or is this another black-eye for the mainframe(like Unix System Services was from a pure UNIX perspective) where it's not quite ready for prime-time, and is just different enough that there are not enough apps available yet.
I think Linux is progressing much faster than USS did in its infancy. The vendors are climbing aboard this train while it's still gathering steam: http://www-1.ibm.com/servers/eserver/zseries/solutions/s390da/linuxproduct.html Paul