STEP 1.Determine when you think you SHOULD get your ASIC Miner.
Use and edit the following link with the format shown below:
http://daycalc.appspot.com/05/29/2013 <--- Link that will easily tell you how many days until that date.
http://daycalc.appspot.com/MM/DD/YYYY <--- The Date format accepted.
STEP 2.Determine where you are in the queue and how many units must be delivered before yours will be. Remember, each customer may have more than one unit on order. For example, a Customer with an order number of xx1900 may have 2 jallys on order. You must "guesstimate" how many devices and how many customers there are ahead of you. A safe number will probably be to use the order number itself as a rough guesstimate of how many units are before you.
If your order starts with xx50389 then you can assume anywhere from 25 thousand to 50 thousand units must be shipped before yours may be. (remember it is all a guesstimate)
STEP 3.Take the number of days you expect to wait from the first link and divide by the number of units you think are ahead of you in the queue.
The result is that you will have a rough understanding of how many units BFL must ship within the days you plugged in.
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EXAMPLE:
I think BFL will ship en masse at or around June 15, 2013.
So I will modify the link in step 1 to:
http://daycalc.appspot.com/06/15/2013After visiting that address it tells me there are....25 days until then.
Step 2, estimate how many units you believe may be ahead of you (play with low and high numbers to get a realistic idea):
Lets assume there are 25,000 BFL units ahead of mine with a fictitious order number of xx27999.
Step 3, plug the number in:
25,000 BFL units / divided by / 25 days = 1,000 units per day for 25 days until BFL gets to mine.
(obviously account for weekends and holidays to get a more refined idea)
Hope this helps. Keep in mind BFL has said their expected mass capacity is around 400 unit per day. Of course until their bulk wafers show up, that is unlikely to ever happen. (IMO)