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.
Im not sure what you mean by installer but I assume your talking about apps. If you want to install apps you can download them from the app store and it will automatically install.Or you can download on itunes and sync to iPhone. If you have jailbroken you need to install 'installous' on cydia by adding hackulous as a source . Search how to install installous. For a normal iPhone that hasn't been jailbroken you don't need a extra program. But for jailbroken you need installous. I work for apple California i would know Also don't jailbreak it messes up your iPhone slows it down and voids your warranty.
You will not have to pay for them. If the iTouch is truly jailbroken, you don't need to worry about it.
Yes, you need an unlocked & Jailbroken iPhone. Which isn't cheap.
You need to be plugged into iTunes to update the latest software and it isn't always recommended for those that are Jailbroken.
you need to be jailbroken and have winterboard installed
You don't need to be jailbroken now that the iPhone supports most carriers. The iPhone 4 is physically unable to switch from GSM to CDMA carriers anway.
WinterBoard is the app you need if its Jailbroken
I can't tell you exaclty how this is done however i do know that it requires your iphone to be jailbroken as you need to manually insert it within your filesystem via SSH (something you can only do on a jailbroken phone)
Get installious for free app store apps. to do this you need to add the hackulous source (cydia.hackulo.us) have fun!
yes, but not all iphone 4 apps are available on the iphone 3gs/3g/2g becuase they are too high resolution apps, or need a front facing camera.
yes but for the music part you need museek app witch you can get from cytia
you need an ipod touch or iphone :)