How did you people completely misinterpret this judgement?
Yes, the couple that pushed this through to the SCOTUS are gay, however this is not a ruling for gay rights. This is a ruling for everyone's rights. The basis for the ruling, in the end, is that such laws violate not just the (putative) right to privacy, but the right to equal protection under the law. This ruling makes anti-sodomy laws unconstitutional.
In Texas, the laws dealing with Sodomy specifically target homosexual couples. In my state, however, the law covers heterosexual AND homosexual sodomy, married or not. There are 12 states in the Union that currently have laws on the books that criminalize sodomy--and in some of them, having anal or oral sex with your wife means that you have to register as a sex offender. Can you imagine that: consensual sex with your lawfully wedded spouse means that you're not just a criminal, you're a violent sexual predator. You can't live in buildings that have children. You can't hold certain jobs.
Someone asked how often laws like this get enforced? Generally they are not, but they are used in other ways. Gays and lesbians who attempt to adopt children are often DENIED their adoption petitions on the grounds that they are CRIMINALS. In states that had antisodomy laws, gays and lesbians could be denied membership in professional organizations for their criminal behavior.
Just because they don't go to jail, or get a fine, doesn't mean that it doesn't affect them.
Of course let's not forgot the wonderful case in Georgia at the beginning of the 90's, where a man was thrown in jail for sodomy--with a sentance of nine years--for performing oral sex on his wife. She turned him in, because she knew he intended to divorce her. It took a team of lawyers paid for by (of all people) Playboy. Nine years, for oral sex.
This ruling lets me have sex in my home, in the way I wish, with the person I love, without repercussions. This isn't about gay or straight people, its about all Americans' rights.