Justice Ruth Bader Ginsburg, speaking in the courtroom for the dissenters, called the ruling "an alarming decision" that refuses "to take seriously" the Court's 1992 decision in Planned Parenthood v. Casey reaffirming most of Roe v. Wade and its 2000 decision in Stenberg v. Carhart striking down a state partial-birth abortion law.
Ginsburg, in a lengthy statement, said "the Court's opinion tolerates, indeed applauds, federal intervention to ban nationwide a procedure found necessary and proper in certain cases by the American College of Obstetricians and Gynecologists. For the first time since Roe, the Court blesses a prohibition with no exception protecting a woman's health." She said the federal ban "and the Court's defense of it cannot be understood as anything other than an effort to chip away at a right declared again and again by this Court -- and with increasing comprehension of its centrality to women's lives. A decision of the character the Court makes today should not have staying power."
In the course of her dissenting opinion, Ginsburg accused the majority of offering "flimsy and transparent justifications" for upholding the ban. She also denounced the Kennedy opinion for its use of "abortion doctor" to describe specialists who perform gynecological services, "unborn child" and "baby" to describe a fetus, and "preferences" based on "mere convenience" to describe the medical judgments of trained doctors. She also commented: "Ultimately, the Court admits that 'moral concerns' are at work, concerns that could yield prohibitions on any abortion."
I read this summary of the situation on Salon and it's very good and scary. The Ginsberg quotes are from here. Via Feministing.