I haven't seen or done a 'gap analysis' between the second and third edition, but I have a copy of each here. There's more detail but a lot is customer specific requirements ejected from QS-9000:1995 version. There are more forms and examples. But - to me PPAP is integral with the
APQP manual. That is to say, very early in your APQP process you should be defining what your submission will be. Get early agreement with the customer SQA on their expectations. I say this because the the variability in industries --> variability in requirements.
To bring this together as a whole, I'd use something like the spreadsheets Ford has on it's supplier network or other similar 'APQP Process' spreadsheet. They have APQP and PPAP check lists built in. I think the most circulated has been Partcertall-6.06.xls which is free in the 'old pdf_files' directory.
http://Elsmar.com/pdf_files/
There are several others in the 'Members access' and 'Premium access' directories as I remember -
http://Elsmar.com/join.html
Or - if someone has one they can attach a copy in a reply in this thread.
This will all soon be a memory, to a large degree, as all the automotives are moving to 'supplier networks' (ASP's such as the Chrysler-Powerway requirement). Everything will be input via the internet.
See
http://Elsmar.com/Forums/showthread.php?t=848