DADT is soon to be dead (at least regarding sexual orientation), but with DOMA still around LGB soldiers in same-sex marriages, civil unions, domestic partnerships, and reciprocal beneficiary relationships will still not be able to give their partner's veteran or service member spousal benefits. They are over 93 provisions related to spousal veteran's benefits including pensions, indemnity compensation for service-related deaths, spousal medical care, spousal nursing home care (this means that your spouse can go into a nursing home, but you can't if you are a same-sex partner), right to be buried in the same cemetery, and educational and housing benefits.
Again, if you are a heterosexual spouse you can school loans, housing benefits, the right to have health insurance, be with your spouse in the nursing home and in the cemetery. But if you're the same-sex spouse of a veteran you are SOL. (You can find this list on page 42 of Love Warriors: The Rise of the Marriage Equality Movement and Why It Will Prevail).
There are 275 marriage provisions related to federal civilian and military service benefits. Which means that LGBT servicemembers are not getting the chance to exercise their full employment benefits. Don't get me wrong, I'm glad DADT is going down, but forgive me for not celebrating too hard when our community is serving our country but not having equal to access to the benefits their heterosexual co-workers have.