1.) Which is the safest application that can jailbreak a 4th Gen iPod touch running on iOS 4.2.1 ? (all my friends seem to be using Cydia)
1.a. Depending on your computer OS, you should use a program called greenpois0n. This is the latest form of jailbreaking that does not require the use of a computer to boot your iPod touch in a jailbroken mode. Hence for this method being called a "teather-less" jailbreak.
1.1) How do you jailbreak? (instruction part comes here)
1.1.a. You would jailbreak your new iPod touch running 4.2.1 firmware by downloading the program from
Greenpois0n's website and follow the on screen prompts. This is extremely easy to follow and will take you about five minutes to complete the jailbreak.
1.2) where can I download the jailbreak apps?
1.2.a. You can download the jailbreak app listed above in the green colored link.
2.) What is the worst case scenario that can happen to my iPod if I make a mistake in jailbreaking and or possible future mishaps if jailbreaking was successful? (In other words, the cons and possible cons of jailbreaking)
2.a. The worst possible scenario is that you somehow mess up the jail break process, and that would mean that you would have to use iTunes to completely restore your iPod touch to factory condition. You will not lose any data from your iPod if you have your media files, ie movies or music, already saved on your iTunes. You can be sure that your iPod will not break if jailbroken.
3.) Will my current apps be deleted when I jailbreak? and If I accidentally shut off my iPod or upgrade in the future thus null/void the jailbreak, will all apps disappear or just jailbroken ones?
3.a. All of your current apps will be removed from your iPod Touch, however since you have not jailbroken your idevice yet, everything is still stored on your computer that you sync your iPod Touch with. Once your iPod is jailbroken, all of the apps that you have saved on iTunes will sync back to your iPod Touch as if nothing had happened. Jailbreaking your iPod does not void the warrenty because Apple announced last year, or year before, that jailbreaking your devices is not illegal, however they will insist that you don't do it anyways.
4.) Will Apple ever find out I jailbroke my iPod and will it affect my warranty in anyway?
4.a. Apple will not find out if you jailbroke your iPod, and it will not affect your warranty in anyway.
5.) Do you guys have any suggestions to help me prolong my battery life? since mine dies relatively fast since I always use it.
5.a. I find that the best way to prolong battery life is to minimize the brightness settings, turn off all unused wireless connections, use headphones compared to the built in speakers, and try not to take HD videos all of the time.
Best of luck and if you still have any questions just let me know,
miros
