Soley speaking from a Tablet PC perspective, this is great news. It opens the door for some standards as it relates to finally getting true ink standards in a PDF format that will be recognized by a standards committee. Kudos to Adobe to turning of the PDF spec to ISO.
Here is what is different in the 1.6 spec vs the 1.7 spec according to Scoble:
- New Print characteristics; paper selection, page range, copies, and scaling.
- New portable collections, IE, PDF packages.
- New Requirement handlers.
- Added improvements to 3D.
- Added improvements to annotations.
- Added improvements to tagging.
- Added improvements to digital signatures.
Here is the press release from Adobe