you get a screen replacement, that normally happens when the device fall into water or have a lot of moisture inside
well if your ipod goes in the water then you should go to a electronic store and tell them what is wrong with your ipod and they will help you fix it
The ipod touch has a solid surface, so if water is poured over it then the water will just roll off. If the ipod is submerged in water then water will be able to get inside and may ruin the electronics.
it gets better
... nothing
This is dependent purely on how big the hard-drive inside your iPod Touch is.
When you sync a iPod touch it backs up your iPod and it can download all the songs on your computer (if you choose that option when you go to you iPod setting in music on your computer) :)
You can't. iPod touches don't have vibrators inside.
it breaks.
U get it and bring it home!
It will clear everything your ipod knows about its networks
There is no possible way to convert an iPod Touch to an iPhone. You cannot convert it. The wiring, circuit boards, and other internal softwares and hardwares are different than that inside an iPod Touch.