No, only an iOS update will.
Yes
Simple answer: Yes.Only update when the Jailbreak you use has a new version / then only update the Jailbreak, not the iPod/iPhone.
If your iPhone is unlocked, then yes, all carriers will work. But if it is locked to a certain carrier, then you will have to unlock it using a jailbreak.
You cannot modify the iPhone 5's settings normally. The only way you can do it is if you jailbreak your phone.
Unfortunately not if you are using stock iOS. However, this could be done if you were to Jailbreak your iPhone.
this will only happen if you choose to update to the newest apple software. updating music and such thru itunes will not touch your jailbreak
You can only get a new text message ringtone if you jailbreak your iPhone.
Plug it in to iTunes, press Restore. It should restore your iPhone to its factory settings, thus killing the jailbreak.
Us Jailbreak me on the iPhone 4 if you have the firmware 4.0
No but you can jailbreak an iphone or ipod touch but they each have different sites to jailbreak your ipod/iphone
Jailbreak your iPhone
Go to Settings>Wifi>On>Find one and connect.