Hey everyone...I used to be an iphone 3G owner back in 2009 when I lived in Europe, then when I returned to the US I sold it as I did not want to switch to AT&T. Now that VZ iphone is finally here I am going to get it. When I had the 3G I had the phone jailbroken for a while but this caused the phone to become slow, hang and just bring general instability to the OS. I eventually restored it because it became unbearable. It's been a long time since then...and I know that jailbreaking can even be done untethered, so I'm assuming there have been advancements....so my question is, how is the performance of a jailbroken iphone 4 compared to the past? Are there still negative side effects to jailbreaking?