Hi, I'm new to all this jb'ing. I have a iphone4 but I barely installed apps to it because I didn't feel like paying $. I just had a few Q's: 1. Does JB lower battery life/slow down the phone? 2.Is there a Greenpois0n out for 4.1 right now? (If there is, where do I follow instructions on how to install it) I heard it got delayed 3. Does JB allow me to use more GB than my monthly plan allows? (For example, I currently use the 2 GB internet plan per month, but maybe JB allows me to use 4 GB without extra charge?) 4. Do I get free apps if I JB my phone? 5. How unstable is jailbreak? I mean, will I see missing icons or the phone just gets F'd up? I heard that the ipod function of your iphone will stop working..is that true? Because that will be a huge negative for me.