From Gizmodo –

Right now, if you visit a web page and load a simple PDF file, you may give total control of your iPhone, iPod touch, or iPad to a hacker. The security bug affects all devices running iOS 3.1.2 and higher.

Update: Initially we thought that this exploit only effected iOS4 devices, but it turns out all iPhones, iPod Touches and iPads running 3.1.2 and higher are susceptible.

The vulnerability is easily exploitable. In fact, the latest one-click, no-computer-required Jailbreak solution for iOS 4 devices uses this same method to break Apple’s own security (although in a completely benign way for the user).

The result is that, without any user intervention whatsoever, that program can do whatever it wants inside your iPhone, iPod touch or iPad. Anything you can imagine: Delete files, transmit files, install programs running on the background that can monitor your actions… anything can be done.

The short answer to this issue is that you need to be careful and not click on any links to PDFs on your iPhone, iPod, or iPad until Apple releases an update to this issue.

The complete post can be found on the Gizmodo site (LINK:) http://gizmodo.com/5603319/

     “Operate iPhone 3G and iPhone 3GS in a place where the temperature is between 0º and 35º C (32º to 95º F). Low- or high-temperature conditions might temporarily shorten battery life or cause the device to temporarily stop working properly”.

“Store iPhone 3G and iPhone 3GS in a place where the temperature is between -20º and 45º C (-4º to 113º F). Don’t leave the device in your car, because temperatures in parked cars can exceed this range”.

   With the personal experience of havng lived in the Southwest US where the average outside temp is over 100’s during the summer (and I know that’s not the only area to get high temperatures during various times of the year), not to mention what your car feels like when the temp outside gets to 105/110, I’m sure we will be seeing more of these postings concerning the iPod and overheating. 

Some conditions and activities that may activate the Temperature warning message:

• Leaving the device in a car on a hot day.
• Leaving it in direct sunlight for extended amounts of time.
• Using certain applications in hot conditions or direct sunlight for long periods of time, such as GPS tracking in a car on a sunny day or listening to music while in direct sunlight.

If you do get past the “safety standards” set into the system you may see the following screen

“This message appears when the operating temperature has become too hot. This is a safety mechanism that protects the components of your device. If this message appears, you should turn the device off, move it to a cooler environment, and allow it to cool before resuming use”.

“Note: When this message appears, the device may still be able to make emergency calls”.