All the iPhone users, This is a caution do not update to 4.0.2. Apple release 4.0.2 into iTunes store's be careful with that. Apple confirms that it had fixed the PDF exploits in this latest firmware udpdate. SO now the JailbreakMe.com doesn't work with this 4.0.2 firmware update. And for those who haven't saved their SHSH blobs for the iOS 4.0 and 4.0.1 go for it on cydia and do it now. There is no update to the modem firmware, only the software version has been updated to fix the PDF exploit.
Check the Apple's official release of the 4.0.2
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