It would appear as if there has been a recent surge in jailbreaking popularity. According to the most recent information from Pinch Media, 8.43% of iPhone users have jailbroken their phone. Of course, looking at the complete picture that is a small number of users, especially when you look at the percentage of non-jailbroken users — 91.57%.
But given that, those willing to jailbreak has risen from 8.0% up to the current 8.43% in just the previous week. Knowing that, one cannot help but wonder if the increase has had anything to do with the recent Google Voice controversy and the addition of GV Mobile in Cydia (the unofficial app store).
All in all this is an interesting stat to see, and one that I have not seen before, but one that I am going to try and keep and eye on in the future. According to Just Another iPhone Blog, the percentage of users was under 7% a few weeks back.

August 6th, 2009 at 11:19 am
Wow, really? How many actually told the truth? I know of about 20 iPhone users personally and 16 of us use Jail broken phones. Apple hinders way too many useful apps.
August 6th, 2009 at 11:28 am
I was kind of thinking that was accurate, only because I am in the opposite situation as you, I have a bunch of people (easily 25+) that I know with an iPhone, but I only know for sure that myself and two other people jailbreak.
I guess it all depends on your use and needs.
August 6th, 2009 at 10:27 pm
Step right up! I will jailbreak ur phone, call me at 1-800 jAilbreak 4 idiots
August 12th, 2009 at 1:44 am
Honestly I don’t get why people don’t . I tell then u can always factory restore and they still refuse
August 12th, 2009 at 1:44 am
In my tech world I have to say I know of atleast 100 iPhone users and atleast 90 of them are jailbroken even my mom and she’s not tech savy at all, that percentage given I know is incorect, maybe if they ask saurik how many downloads of cydia he has to diferent IP’s and compare to IPhone’s sold, they might be able to get a rough estimate
August 25th, 2009 at 2:25 am
Jailbreak.
September 8th, 2009 at 12:02 pm
I think the vast majority of non-jailbreakers don’t even know what jailbreaking is. I had to explain what it is to a couple friends who had iphones for well over a year. I was only able to convince them to JB when they saw all the free “paid” apps i get to use!
December 7th, 2009 at 3:48 am
Non JB 1% and JB 99% Right now… check it out again.