If you are a paying ADC member, and it sounds like you are, you will get the GM. I have a feeling they will mail it, but I do know that it was *not* in this month's mailing, since it just arrived today. I would imagine if they put it up on the ADC site for download, they'd be overrun for a week, but who knows?
I wish ADC would do a better job of communicating. They must be aware of how anxious ADC members would be to get 10.3 GM ASAP. If they would just send out an email and announce their intentions, that would be a big improvement.