I think it would be very nice to get calibre server operating as a remote control for calibre. Note that this would require running calibre from a server somewhere.
At least at the moment, many people are doing an end run around ChromeOS's restrictions using
crouton or
ChrUbuntu, either of which should serve to allow installation of calibre.
Either one does require a certain familiarity with the command-line (at least for installation) and technical knowledge that means it may not be for everyone, though.