EA mostly discussed the importance of putting homosexuals into games, and also touched on the games that have this stuff in them, such as The Sims. Bioware's panels focused a bit on that as well, but also the evolution of their incorporating LGBT characters into their games by taking small, incremental steps. They talked about how it started with Juhani in KOTOR and how they built things from that. The goal really, is that they're doing their best to try to be as inclusive as possible.
David Gaider was on scene to discuss writing all these various characters and some of the ideas they've had. As an example, the choice to have (almost) all characters available for a love interest for your main character in Dragon Age 2 was motivated by the desire for inclusiveness.
It was interesting to note how a transgender person at the last panel brought up that they've been represented pretty shittily so far in Bioware's products, and Gaider actually flat-out apologized for it and that Bioware plans to do better going forward. A lot of folks speak quite negatively of Bioware and EA, but quite frankly, people tend to forget that the people behind the corporate face are gamers like the rest of us, and it was really neat sitting on the panels and listening to these individuals' thoughts on LGBT inclusion in gaming.