I don't think you'll get a recall. Apple has always been pretty solid relative to similar products out there. If they don't seel another one because of the antenna issue, maybe they do something. But, if they can't keep them in stock, forget it. Besides, if all other phones do it, what's the big deal. Look at the iPad. Reports said it didn't fit any niche and it would flop. It is still selling like hotcakes.
I like my iPhone and the signal issue doesn't bother me. If they do a recall, I probably won't send mine back.