To add to this:
They invite 2 million over 2 days for beta, around 1 million per day.
It seems they will only do 5 waves today and people in wave 4 were preordered on the 26th, so im guessing if we are lucky wave 5 may go up to the 30th.
US only Preorders for July were 120,000, and unless preorders from the rest of the world tallied over 880,000 (unlikely thanks to the limited launch countries) they are no where near inviting 1 million people today.
Seems to me their servers can't possibly be stressed anywhere near the amount it would have been for the last beta weekend.
Why are they holding back?