Hello,
for those who do not follow forum.meego.com: zeamoceq compiled a cron package for Harmattan. You can download the deb from here https://gitorious.org/cron-for-harma..._0_1_armel.deb

Note that it only works for root, for the thread discussion see http://forum.meego.com/showthread.ph...highlight=cron

There are many, many case examples one can think of: Automatic switching between profiles, displaying battery status, news, quotes etc on low power lockscreen etc etc

See for instance http://talk.maemo.org/showthread.php...13#post1150013 for a first example.