My friend and colleague Chip Lupu has a very interesting guest post on that topic over at Concurring Opinions. The introduction:

After approval of Proposition 8 in California last fall, who would have expected to find the movement for same-sex marriage and concern for religious freedom on common ground in the spring? As legislatures in Vermont and Connecticut have just demonstrated, however, a long-overdue reconciliation between claims of marriage equality and those of religious liberty is there for the taking.