How can I use cron on Google Appengine?
According to the official AppEngine blog's public roadmap update two weeks ago, scheduled tasks (as well as background task queues) are due for the release in the moderately near future ("in the next six months," as of Feb. 6, 2009).
Google has officially enabled cron in the AppEngine, for more details check: Cron for Python: http://code.google.com/appengine/docs/python/config/cron.html Cron for Java http://code.google.com/appengine/docs/java/config/cron.html
You can now run scheduled tasks with google appengine
http://code.google.com/appengine/docs/python/config/cron.html#Securing_URLs_for_Cron
Here is an example http://cron-tab.appspot.com/, the python source code is available in the related project at code.google.com/p/cron-tab/
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