Hi Sargon
it is quite common actually
Fidelity, Mephisto and Saitek are all guilty of the same thing
they announced computers ,advertised them with model numbers and never released them
here are some examples from the Wiki:
Fidelity Challenger 2300
Saitek Megathon 2400
Saitek Turbostar 2600
Premature Regards
SteveB