As for the status of the remaining 3 batches: order page still displays that shipping is prepared, but not that they are shipped. Whatever that means 
That is the longest "12 hours" shipping schedule. (Then again we are in bitcoin time. Two weeks is about 2 months so 12 hours is about 2 days)
It might be that the batches already are on the way. The last time i got sample chips i got the tracking code and 5 minutes later the postman ringed on my door...
