Apple has posted a new iPhone video entitled ”Activation & Sync,” covering the steps users will take to setup and sync the device. The video contains a few new details on the iPhone and how it will work with iTunes. Of note, it appears that there will be 7.23GB of free space on a new 8GB iPhone. Absent from the iPhone’s iTunes Summary tab are options for “Enable Disk Use” and Manual Mode, but it does include options…