Ugh, just had to dig out all entries of mcalendar_sync.py again...

And the only thing i did was run mcalendar for a couple of seconds, with the result that i had multiple sync processes going, eating its way thru ram and maxing out the cpu. And it continued after it forced the tablet to reboot...

Either i'm extreamly unlucky, or there is some kind of interaction issue between mclaendar and python-launcher...