Your iPhone personal data is protected by the passcode lock screen at all times, right? Turns out that it's pretty simple to bypass the four-digit passcode to access the phone app revealing contacts, email information, recent calls and even visual voicemail. The process to circumvent the passcode lock revolves around the emergency call feature built into iPhones to allow 911 calls on a locked phone.

MacRumors forum user jordand321 announced the security flaw this weekend. The problem happens when the iPhone is locked but you enter the emergency call screen. Type any non-emergency number and touch the call button.

Dev-Team has released an updated version of their simple and powerful PwnageTool jailbreak software. The new version combines the pwnage2 exploit with the pf kernel exploit from comex and geohot's limera1n. PwnageTool results in an untethered jailbreak of iOS 4.1, allowing unauthorized software to run on your device.

The second-generation Apple TV is now included in the PwnageTool device list, as well as iPads running firmware 3.2.2. Right now the Dev-Team is offering a Mac OS X version of PwnageTool, and as normally happens development of a Windows version is probably underway.

AT&T beat its previous iPhone sales record by activating 5.2 million iPhone units during the third quarter of 2010. A whopping 3.2 million iPhone were activated in the previous quarter with the launch of the iPhone 4. A full quarter of iPhone buyers this time around were new customers to AT&T.

Overall, the company activated 8 million smartphones including the iPhone. AT&T now has 92.8 million subscribers in the US, but still lags behind leader Verizon Wireless. Over 57 percent of AT&T customers carry a smartphone or other device with a full integrated keyboard.

Sources at Apple have told the Boy Genius Report that a revised iPhone 4 model is currently in the final phases of field testing before release. This model revision is known as "iPhone3,2" and may be launched ahead of Apple's typical summer iPhone refresh cycle. Speculation is rampant over exactly what revisions are coming to the iPhone 4.

The leading contender is a CDMA-compatible version of the iPhone 4, which could be offered by either Sprint or Verizon Wireless in the US. Although this would make sense given the impending end of AT&T exclusivity, BGR also reports that the new iPhone 4 retains a SIM card slot. SIM cards are used on GSM networks like AT&T and T-Mobile.

The jailbreak community has been active lately. Thanks to a surprise release of the limera1n jailbreak tool from Geohot, the release of Greenpois0n was delayed. Now both hacks use the same unpatchable bootrom exploit and are available to the iOS device-owning public.

In the meantime, the SHAtter exploit initially planned for Greenpois0n has been shelved for future use. Apple will surely fix the bootrom exploit in the next round of iOS hardware, however this time the jailbreak developers have a countermeasure ready for action.