If you've forgotten the passcode to unlock the iPod then as it's not stored anywhere you will need to reset the iPod : connect it to the computer that you normally sync to and you should then be able to reset the iPod and restore/re-sync your content to it (http://support.apple.com/kb/HT1212) - you may need to put the iPod into recovery mode in order to be able to reset it : http://support.apple.com/kb/ht1808
If you do it via a computer that it's not synced, and which therefore doesn't have a backup on it, then :
If you restore on a different computer that was never synced with the device, you will be able to unlock the device for use and remove the passcode, but your data will not be present.
This site contains user submitted content, comments and opinions and is for informational purposes only.
Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.