Yes I do have some concern. Major concern. I have some questions related to jailbreaking and iPad. My iPad is version 4.2.1 And when I first jailbreaked, I entered Cydia and I tapped on the "Make my life easier" thing. I Googled and found out that tapping that will backup my SHSH/SHSH Blob(is there any difference?) But I'm not quite sure...I downloaded the iSHSHit and backup again and send the .shsh file to my email. Is it considered backed up now? Means I don't have to use any TinyUmbrella etc etc... And I don't think jailbreaking using Greenpois0n will cause any SERIOUS damage right? Worst scenario will always be restoring right? And does iTunes 10.2.0.34 jailbreak-safe?