I've got an iPhone 3g with 3.1.3 that I want to jailbreak (Modem Firmware 05.12.0), the main reason being I want to tether my iPhone to my future iPad using Mywi. I'm currently using iTunes 9.1.1. I've done my research, but still have a few questions that I hope can be answered here. 1) Out of all the jailbreak methods available, Spirit jailbreak seems to be the easiest. Is there anything else I should look at? 2) I will back my phone up with iTunes before jailbreaking, but will I lose all my data after jailbreaking or will everything still be there? 3) Can I still sync my phone with iTunes after jailbreaking? 4) Am I correct in assuming that I can get Mywi from Cydia? 5) If I decide at any time that I don't want a jailbroken iPhone, can I restore my phone back to 3.1.3 via iTunes? Sorry for all the questions, but I appreciate any answers you can give me.