iTunes 9.2 adds the following new features:
- Sync with iPhone 4 to enjoy your favorite music, movies, TV shows, books and more on-the-go
- Sync and read books with iPhone or iPod touch with iOS 4 and iBooks 1.1
- Organize and sync PDF documents as books. Read PDFs with iBooks 1.1 on iPad and any iPhone or iPod touch with iOS 4
- Organize your apps on your iOS 4 home screens into folders using iTunes
- Faster back-ups while syncing an iPhone or iPod touch with iOS 4
- Album artwork improvements make artwork appear more quickly when exploring your library
iOS 4 will be available on June 21 as a free upgrade for iPod touch and iPhone users. Mutitasking will only be suuported in iPhone 3GS and 3rd gen iPod touch.