TUAW now reports on a few details that have leaked out of the meeting, including the fact that the Lightning connector is waterproof and that all MFi accessory manufacturers must agree to abide by Apple's supplier responsibility code.
[D]uring the meeting this week a few interesting tidbits have made their way to us through the Great Firewall. Most are trivial (did not know: the Lightning connector is waterproof!) but one big one is not. According to our source at the event, Apple intends to make compliance with its supplier code of conduct a condition of MFi licensing. [...]The report notes that details on requirements for adherence to the code and potential penalties are not yet known, and speculates that U.S.-based accessory companies may have an advantage in compliance with stricter controls already in place.
Pushing it out to the larger accessory ecosystem would be a concrete example of Apple using its 800-pound-gorilla status in the consumer electronics space to influence more companies to behave ethically on worker rights, environmental issues and more.