At the same time, it is important to bear in mind that legal and moral codes are the constructions of human societies, that evolve and change as society changes. The changes are guided both by precedent, but also by common sense, when circumstances change sufficiently to warrant it. Jewish law used to work this way, as the Talmud itself abundantly demonstrates. For secular Jews like myself, the Torah and Talmud represents a codification of the common sense of the time in which they were written. The primary difference between the two is the focus of the movement.
Reform tends to center on individuals, where Reconstructionism tends to center on the community.
In a Reconstructionist synagogue, the Rabbi reverts to the more traditional role of teacher, rather than the leader of the service. The service is led by members of the congregation, and the primary job of the Rabbi is to teach the congregation. As far as practice goes, Reconstructionism tends to be a bit more traditional, probably because the movement started as an outgrowth of the Conservative movement, and the majority of Reconstructionists come from Conservative upbringings. The movement has a very naturalistic view of God, and of the role of Judaism in our lives. If anyone wants to learn more, I've got a 10 page article by the president of Reconstructionist Rabbinical College describing the movement.