Obama to LGBT Group: ‘I want to congratulate all of you who have shown your love for each other by getting married these last few weeks.’

I hesitate to poke at Obama for offering a kind word, but in that letter to the Alice B. Toklas LGBT Democratic Club, Obama further muddies his position on gay marriage:

Finally, I want to congratulate all of you who have shown your love for each other by getting married these last few weeks.

How this squares with his “I don’t believe in gay marriage” statement from March 2, 2008 is not clear.
Is his position essentially, “I don’t believe that your relationship is really a marriage, but congratulations on your marriage?”