I am keeping track in a xl sheet most of the user names/dates and order numbers from 3/14 - 3/16 (3/16 is my preorder date), pretty geeky, but I can tell you that the order numbers are progressing in chronological order.
Not by date.
This is why it's beneficial to look at verified order confirmation times rather than order numbers. The order numbers DO increase in chronological order. Anyone who has a history of ordering with B&H can see that over time, the order numbers increase. We have verified on this site that they use different order numbering systems depending on your ordering channel (online, phone, in person etc)
The one thing that has been consistent here is people who check their order confirmations and note the time can have a pretty good understanding of where they fall on the waiting list. We had one or two people who found this to be contrary and used the information to correct the problem with B&H and subsequently got them to get their orders shipped.
We can use order numbers to gauge the accuracy of order timing with what people are reporting. Check the AM/PM mix-up earlier.
The information in this thread still hold true (unless we get information that proves otherwise) Orders placed 3/14 after 6PM EST do not have updates as to when they will have their cameras shipped. Orders placed prior to this have been filled and are either shipping or in the hands of the customers.