I am in the same boat as all of you ladies!! My DS (15 months) has been teething on and off for months now, and while I believe his pickiness is due to the sore gums, I know that the throwing is not! He had gotten better with it for about a week at one point, but is really in rare form atm.
Jakobsmommy - my DS does the same.exact.thing with the looking, and dropping in a slow exaggerated fashion. I can't believe it! They totally know they're not supposed to be doing it! He has even faked me out by putting the food to his mouth and then quickly throwing it off of the side. He also laughs at me when I saw no throwing, food is for eating. When he knows I'm going to take the tray away, he starts throwing them rapid fire and will even grab for crumbs on the tray as I'm removing it so he can throw them too!