MacRumors iPhone Blog: Apple Forces Removal of ‘Free Memory’ Functionality From iPhone Applications
While third parties are limited from developing background applications for the iPhone, Apple allows their applications such as the iPod, Safari, and Mail applications to continue to run. After prolonged use, these background applications may take up most of the memory (RAM) on the iPhone that can create interface sluggishness and prevent some memory-intensive applications from loading.
MacRumors iPhone Blog: Apple Forces Removal of ‘Free Memory’ Functionality From iPhone Applications
users wishing to avoid a complete device restart force quit Mail, Safari, and iPod if necessary by holding down the sleep-wake button until the red slider appears and then holding the home button until the application quits.
