Ok so Foundation put on your blinders. You have been stating that the A Model will come out before the end of this year (2012). There is no way in #@ll that is going to happen now.
Last I saw Farnell is backed up for 47 days!
RS is backed up until around March, probably!
If you release the A Model right now, Today, Day before yesterday>
IT WILL NOT SHIP until 2013. No Way! Ain't going to happen!
So be ready for all the people that are going to burn your ears about the A Model being released this year.
They are not going to take into account the 512MB model being like a whole new start of ordering all over again. Because the 512MB is not an "A Model" . You have shot yourself in the proverbial foot again, no matter how you look at it you are going to be wrong again.
There is only one way to fix this! you better have put them into production like 6 weeks ago and they are being shipped to the UK by tomorrow. Other wise here we go again dang it!.