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This is good suggestion to introduce a Autostart Manager. But probably you need to take into account the memory managment for the applications running. Its very difficult to run many applications simulteneously and hence auto-starting the application can add to the cheos.
Insted if nokia can add a Task manager for mobile devices, it will be great convenience. Mant times the application hangs, so in situations like this it would be better to shut down the application rather than restaring the mobile.