Interesting idea...however, in my case I keep most of my crons in a directory not accessible through a browser, so that someone can't accidentally come across and run one manually. Am I the only one that does this? I also have crons that run to perform maintenance/clean-up and backup on files/databases (either daily or weekly) and it sound like this service wouldn't work in that case, unless the scripts were changed to a server-side language like PHP and then put in a publicly accessible directory.