Our assumption - iOS 4.0 testing is backed up, and (despite M3000 being iPad-only) we were honest and didn't tick the 'Tested on iOS 4.0' box in iTunes Connect - we suspect that stuck into a 'needs more testing' queue.
Which is a very long-winded way of saying sorry to force you to download the same 113 MByte app 2 days running. No way to treat early adopters, we agree, so we will buy at least some of you a drink when we see you.
In the meantime an eagle-eyed customer has spotted another 'deliberate mistake' which we need to fix. On with the endless refresh cycle!!