Image via @rzhale
We have since heard that the upcoming iPhone 4′s RAM has again been upgraded. This will bring it to a total of 512MB of RAM, twice as much as the 3GS and iPad. This number actually contradicts tear down photos of a prototype iPhone 4 that was leaked to the internet. An analysis of that prototype device showed it only carried 256MB of RAM. The 512MB figure, however, does agree with a Digitimes report from May 17th that confirmed a 960×640 screen resolution, thinner display, and indeed 512MB of RAM. Apple confirmed this 512MB figure during one of the WWDC sessions last week, and we have subsequently verified this. The session it was revealed in is now available (Session 147, Advanced Performance Optimization on iPhone OS, pt 2) for registered Apple developers.
Looks like my wild speculation in my multitasking article back in April was correct:
Apple’s first step into multitasking looks great to me! Their strategy will automatically grow with the hardware. For example, when the 4th gen iPhone is released with 512MB of memory (I love speculating), it will be able to keep more simultaneous apps suspended / backgrounded. Also, as the hardware improves, additional APIs could be added to allow a wider variety of apps to work in the background.
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