Apple has always tried to fight off Jailbrekers aka iPhone Hackers using the iPhone firmware releases. However now there seems to be a new reinforcement to the war against the iPhone Dev team that leads the iPhone hacking worldwide :P. The New Apple Macbooks (notebooks) are preventing the iPhone from being Jailbreak.
Apparently the new Macbooks don’t detect an iPhone or iPod Touch in DFU mode, which is a vital requirement for jailbreaking. Though still unconfirmed, it is v much possible that Apple might have taken this step!