As someone who runs a small Google App Engine (GAE) app, I'm currently planning on using a cronjob off a box at home to do backups. The thought occurred to me that it would be great if I could use an online service that backed-up my datastore periodically and stored those backups in the cloud. The question is whether anyone else would be interested in such a service. Are there any other GAE developers on HN? If so, would they be interested in such a service?