Hi everyone I'm a newbie to iOS world, and, to be honest, I don't even have an iPhone yet. And... I want to get some information and don't just have it and flash it straight away. So, can anyone inform me or redirect me to a thread where I can check: The risks of jailbreak Is jailbreak a revertable process I'll have an iPhone 4. Is iPhone 4 (GSM) the non-CDSMA version? Can I install Cydia and unlock my iPhone? Will I lose warranty or I can put it in its original state? Can I backup my information? Thanks in advance EDIT: I read iPhone 5 will be released in Summer, but this is a very expensive phone, and I had the luck of win it. Will iPhone 4 get outdated soon?