OK, for everyone still waiting, here's my take. I paid a down payment in March, I was number 11 in line at FUN! (local distributor). I do have my machine now (2 weeks ago) and think everyone that pre-ordered at Fun! has gotten them (I may be wrong). At least everyone I know that preordered has received them.
Fun! expected to get many more in their first order, but only got a hand full and each time after. FUN! ordered all of them in early March. Stern tells them a shipment is coming and they tell them how many they will actually ship. Stern was apparently sending them out according to how many machines were requested originally (think March), but not necessarily the entire order so they could spread the initial shipments around. Once all those early requests (from distributors) were filled, then they started filling more (in order) and should be mostly caught up. Makes complete sense to me.
Some of you that ordered recently and got machines are very lucky. It's possible those distributors placed a huge order early in March (more than they had sold) and received them all so they had some to sell now.
Those of you still waiting, be patient or see if you can switch distributors. Some seem to have games in stock now. It feels like they are all coming out now so you should have it soon. The game is great. I am so glad I waited (almost backed out because of playfields, etc but really wanted this game). It's hard, but will keep us playing for a very long time.