Please can someone tell me what jailbreak is and why would you do it Thanks Sha x

Hello!!! Please can you tell me what is jailbreak????? Obviously my iPhone 4 can do a lot more than I realise. Ps only hAd iPhone since last Xmas still learning get frustrated have to download ringtones etc but loving phone xxx Sha x

Please can someone clarify this....I will be able to contact family who have iPhone in America with this message free of charge??? What about FaceTime etc sorry I am new to this forum and only had iPhone year and know there is a lot of things available I know nothing about Thanks Sharon

hello I am new only had phone about year and first iPhone I am sure it can do a lot more than I realise so thought this would be great place to start if you have lots of ideas would love to hear!!! Lots of my mates have blackberrys I was the same but converted after about 5 mins on this just...