Feature Requests

Some kind of package manager like apt would be nice

Some form of file syncronisation/version control support

Powerful block storage virtualization

Full iSCSI target support, with support for virtual iSCSI targets for optimal division of storage

Accounts management

Authentication using Pluggable Authentication Modules, configured from the web-interface

LDAP, Active Directory (native and mixed modes)

Other features

Built-in mysql Database

Built-in Mail Server

Built-in FTP - Client

Built-in uPnP AV Media Server

Sending Email when a disk error occurs (shouldn't be a problem, since the RAID is already monitored)

Would be sensible to alias rm to rm -i for users in ~/.profile since sshd is available as a package

Full industry-standard protocol suite

NFSv4 support

WebDAV and HTTP 1.1 support

NNTP (Usenet) retrieval (similar to BitTorrent support, but load up an NZB File instead of a Torrent file)