Lyle Denniston reports at SCOTUSblog:
Taking on a historic constitutional challenge with wide cultural impact, the Supreme Court on Friday afternoon agreed to hear four new cases on same-sex marriage. The Court said it would rule on the power of the states to ban same-sex marriages and to refuse to recognize such marriages performed in another state. A total of two-and-a-half hours was allocated for the hearings, likely in the April sitting. A final ruling is expected by early next summer, probably in late June.
The Court fashioned the specific questions it is prepared to answer, but they closely tracked the two core constitutional issues that have led to a lengthy string of lower-court rulings striking down state bans. As of now, same-sex marriages are allowed in thirty-six states, with bans remaining in the other fourteen but all are under court challenge.
UPDATE 7:51 p.m. The Obama administration will file a brief in the same-sex marriage cases, supporting equal access to marital rights in all of the states, Attorney General Eric Holder said in a statement.
I really hope that counsel for our opponents boils it down during oral arguments by saying, "Your Honors, what about the chirren?!!" and sitting back down.