Bah! I have no FP paid account.
Hellgate doesn't look too MMOish, but I don't know.. I haven't really seen much of the multiplayer aspect. If it's got a main hub for meeting up with people, then I'd call it an MMO. Only because GW calls itself an MMO and works the same way (albeit, cheaper).
I figure I'll try the demo/beta out and if it's good, I'll get it for the singleplayer aspect, which is hopefully more than a few hours long.