You violate the contract you signed when the purchased the phone. You also lose any warranty that you might have. You also might damage the phone. Depending on the country, you could also be guilty of an illegal act.
If you jailbroke it by using cydia all the apps and cydia apps will get deleted
From a apple store or on apple.com
if it is updated to the ios 5
$199 for a 16GB $299 for a 32GB
from June 24 on, 99$
no
$400-$500
Not yet
what do you mean once it jailbroke... ...it jailbroke unless you tern it off or it runs out of battery then you will have to re-jailbreak or if you uninstall the program
1000 Ways to Die - 2008 Jailbroke was released on: USA: April 2012
yes u can wipe it with water and it will go
NO, the iPhone 3GS and 4 are differently shaped.