I'm surprised to hear that online deposit holders are receiving invitations. I heard they took about 150,000 deposits in the stores before the online orders went live. There is no way they could be anywhere close to fulfilling those orders. This doesn't make sense.
I placed my order online within the first five minutes but I'm still showing April-June for first production.
All the online orders that received the invites yesterday seem to be on the western side of the U.S. (not that it stops me from checking mine religiously), particularly in San Diego.