I can tell you with absolute certainty that jurist do not like the idea one little bit as I have personally had more than one heated discussion with them about it. I can also tell you that it is my personal belief that it was the intention of our founders that jurors have exactly the power you describe - to judge both the facts AND the law - and make their judgments accordingly.
It's more than a personal belief. It's a known and established fact. SCOTUS's take seems to be "Yes, nullification is a right of a juror. However, as an individual citizen, he is on top of the Constitutional heap and has the duty to know what his rights are. Therefore, a judge is under no obligation to spell it out for him."