Apple iPod touch iOS 2.1 - Manual (Page 13)

Chapter 1 Getting Started 13
Settings provided by a configuration profile cannot be altered. If you want to change
these settings, you must first remove the configuration profile or install an updated
configuration profile.
Remove a profile: In Settings, choose General > Profile, then select the configuration
profile and tap Remove.
Removing a configuration profile deletes the settings and all other information
installed by the configuration profile from iPod touch.
Disconnecting iPod touch from Your Computer
Unless iPod touch is syncing with your computer, you can disconnect it from your
computer at any time.
When iPod touch is syncing with your computer, iPod touch shows “Sync in progress.”
If you disconnect iPod touch before it finishes syncing, some data may not get
transferred. When iPod touch finishes syncing, iTunes shows “iPod touch sync is
complete.”
Cancel a sync: Drag the slider on iPod touch.