Yes, you can "Undo" a Jailbreak, by going into iTunes and Restoring your iPod Touch, or iPhone.
when an iPod is jailbroken using "tethered" software, when the iPod battery dies or the iPod/ idevice is turned off/rebooted it will say the "connect to iTunes" screen, but an iPod using "untethered" software an iPods battery can die the device can be turned off and rebooted and anything else involving the idevice being restarted in any way without being set into recovery mode, where it says " connect to iTunes", so if you're going to jailbreak an iPod, use untethered, such as spirit, or the new limera1n when released.
I'm not quite sure but I dont think you need it jailbroken because if u need it jailbroken you can just download apps from Cydia (an app you get if u have ur pod jailbroken ) instead of going on a website. But I dont have mi ipod jailbroken because it makes your ipod slower and it can rlly damage your ipod.Hope this helps.------------------------------Yes it needs to be jail broken, because most of the apps on apptrackr are cracked ones, and if you jailbreak your installd file enables you to use cracked apps.
I have no clue but if you're going to jailbreak you're iPod just be careful because it will slow your iPod down. This happened to me and CoD WaW Zombies didn't work. I had to unjailbreak it in order for it to work.
You can add a video on YouTube without going through iTunes on your iPhone by uploading it directly via your PC.
You can't.
Yes, there even going to soon make a jailbreak for iOS 4.0
You hold the sleep and home buttons until it shows it has been restored. If you have a iPod touch on iOS 5+ that is NOT JAILBROKEN, the closest you can get to a full restore is going on your device to Settings.app>General>Reset>Erase All Content & Settings. That will do just as it says, If you want to sell it I'd suggest getting a hold of a computer with the latest version of iTunes and restoring it that way.
If you don't know your password, you must go through iTunes. Otherwise, just enter your password.
easy just ask the person the password
your music and apps are all going to be in itunes however your high scores in your apps and maybe emails/notes and settings like your email accounts will be lost (you just have to add them again)
You can download iTunes by going to this website: http://www.apple.com/itunes/download/