PSN ID
by George Hotz, the guy known for cracking the Sony Playstation 3 gaming console, has accepted a challenge from fellow iPhone hacker, Joshua Hill, to "dump the iPad 2 BootROM" before he does.
Hill, also known as @p0sixninja is the guy who came up with Greenpois0n; he claims that Geohot's involvement may motivate him to work harder.
While Hotz did say yes, the fact that he still doesn't have an iPad 2 (but plans to get one though) may be a slight handicap.
He also highlighted the fact that there are significant obstacles in trying to jailbreak the iPad 2, which has already been on the market for more than six weeks now.
In a blog post in April, he said "This is going to take quite a bit of reverse-engineering in order to get it to work. Apple is making it more and more difficult to jailbreak their devices."
Another well known hacker, Comex, the one behind Jailbreakme, is currently working on an iPad2 Jailbreak using what is commonly known as the userland exploit.
Bootrom exploits are considered superior to userland ones because they can only be fixed when the hardware is upgraded whereas userland can be patched with a firmware upgrade.
There's no ETA for the release of the hack, however, given that the iPhone 5 is expected to be announced next month, this might give them an added incentive.
source
Hill, also known as @p0sixninja is the guy who came up with Greenpois0n; he claims that Geohot's involvement may motivate him to work harder.
While Hotz did say yes, the fact that he still doesn't have an iPad 2 (but plans to get one though) may be a slight handicap.
He also highlighted the fact that there are significant obstacles in trying to jailbreak the iPad 2, which has already been on the market for more than six weeks now.
In a blog post in April, he said "This is going to take quite a bit of reverse-engineering in order to get it to work. Apple is making it more and more difficult to jailbreak their devices."
Another well known hacker, Comex, the one behind Jailbreakme, is currently working on an iPad2 Jailbreak using what is commonly known as the userland exploit.
Bootrom exploits are considered superior to userland ones because they can only be fixed when the hardware is upgraded whereas userland can be patched with a firmware upgrade.
There's no ETA for the release of the hack, however, given that the iPhone 5 is expected to be announced next month, this might give them an added incentive.
source
iphone is ok to jailbreak. 
i think getting the iphone 4 just jumped higher on my list off things i want 
