The prestarted application flag sounds good - lets hope its not abused too much
/* Prestarting depends on the env var HILDON_DESKTOP_APPS_PRESTART and the * amount of /proc/sys/vm/lowmem_free_pages up to * /proc/sys/vm/lowmem_notify_low_pages. * not set|false|no - Never prestart apps. * yes|auto|0 - Prestart if there are more free pages than stated in * /proc/sys/vm/lowmem_notify_low_pages. * number - Prestart if there are more than this number of free pages. */