iPhone applicationDidEnterBackground: method to save user data and any state information
<p>What is the best approach to save any application state information or user data information before application goes to background?</p>

<p>Say for example I have one application level variable called "Authorised". Where should I save this information so I can get it back if it is purged by memory management.</p>

<p>Regards,</p>

<p>Atif</p>
