They have been ignoring them so much that the military just happened to discharge nearly 300 service members under the DADT policy during FY10. The military does not change because of this. The purpose and intent remain the same. What changes are individuals perceptions. There are not logistical problems, if you don't want to room with someone, it is easy to change rooms (I have facilitated this for soldiers, its not hard). The only issue created is the fear of gays/lesbians and this perception that they want to do something to you. All this boils down to is homophobia. Furthermore, unless there is a new DD Form which asks, "What is your sexual orientation?", the notion of sexual orientation is meaningless.
There are policies which prohibit relationships between soldiers within the same unit: if two soldiers are engaged in a relationship, neither is allowed to be a command position within the same unit. In other words, an Officer and/or NCO are prohibited from dating soldiers within their unit. If they are in different units, then the relationship is permitted. The policy is much more detailed and varies slightly amongst the different branches. If you want the full explanation, search it on Google and it will give the full blown explanation from the regulations.