if not too late ... here are my question(s) :
what about nfs/smb support ? (the existing nfs clients/servers are not that good)
is os4 multi user capable with usr/local/world rights ?
will the passwds (if multiuser capable) be md5 coded to be compatible to existing un*x systems ?
will there be a ssh2 shell ?
will the tcp stack support nat, routing, etc ?
will the system be documented (รก la sun) ?
will the desktop be exportable via xwin (vnc is not THE solution) ?
will the sysetem be remote configurable ?
(i know, some of them are old :-/ )