How to Hide a Dock on an iPod Touch
- 1). Tap the "Cydia" icon on the home screen of your jailbroken iPod Touch.
- 2). Tap the "Search" option.
- 3). Type "SBSimplify" in the search bar.
- 4). Select the "SBSimplify" application.
- 5). Tap the "Purchase" icon. Enter your payment information, including your credit card number and billing address. Click the "Install" icon.
- 6). Tap the "Confirm" icon.
- 7). Press the “Home” button on your iPod Touch.
- 8). Tap the "Settings" icon.
- 9). Select the "Activator" option.
- 10
Select the option to "Hide Dock Bar."
Source...