Hey! I just read a report on Acr7 and there really IS something quite revolutionary going on-- that is, it's revolutionary for Adobe marketing, but not technically.
Swiss PDF guru Dan Shea describes it quite well here:
So this means, for the first time ever, that clients will be able to add comments and fill out forms in Reader WITHOUT having to purchase the Extension pack. Like he says, the technology has been in Acrobat for years, but it's the pressure of the low end competition that's forcing Adobe to now include this 'feature' as part of the package.
I can see how this could (and will) dramatically affect our handoff and client workflows!