21th of July - 8th of August - Today (they wont let a lot of people in today, as it's the first day servers are up and running for public, so they need to monitor and stabilize them)

8th of August - 1st of September - Tomorrow (they'll start letting huger portions of pre-orders in)

1th of September -25th of September - Thursday

25th of September - 1st of October - Friday (they wont let in a lot of people this day, as it's friday, and they know that a lot of people will be online).

1st of October - 25th of November - Saturday (same as for friday, but the servers have been up and running for a while now, so they should be moderately stable).

25th of November - currently - Sunday (they should be comfortable enough to let the masses in now, so everyone will get atleast 1-2 days of early access).

In case you wonder, I redeemed my preorder the 7th of December, and I'm dying to get in

I really hope that it'll go better than expected for Bioware, and that they'll be able to let everyone in for the weekend (friday).