You can! Although there is still 30 seconds run time limit, it's much more better than cron based solutions. For one you can run tasks in parallel. You can als

You can! Although there is still 30 seconds run time limit, it's much more better than cron based solutions. For one you can run tasks in parallel. You can also use something like schema-migration example from Google IO presentation. So one task executes and after it's done adds new task to task queue. They also plan MapReduce on top of task queue, that'll be even better suited for your job.