The only reason Steve Jobs qualifies as a Halloween outfit is the single sad fact that he is dead. You do not have to zombify him to both pay tribute and be true to the spirit of Halloween, but you could have some nasty, ugly lumps of cancer hanging out your turtleneck.
Oh, and do consider forwarding any and all money thrown at you to some cancer research fund, of course.
It is sad and no fun we lost Steve so early and so abruptly, but that's life. Plus, everyone can easily look like Steve, but no one will ever be Steve again. The triumvirate that is supposed to replace Steve looks like a bunch of tax inspectors in direct comparison. I wish Apple all the best, but Steve will be missed.