What is the PastryKit Framework?
John Gruber recently posted a link with some more information from his research over at Daring Fireball: pastrykit
EDIT: David Calhoun added a lot more in-depth information over at this blog: pastrykit digging into an apple pie
To find more info, a UML, Full Decoded/Decompressed Source and Assets check out this entry:apples pastry kit iphone javascript toolkit
It would appear that PastyKit is also in use in iTunes LP files. Fascinating. Can't wait to learn more about this — sorry not to have more details!