Gmail: What are ways to schedule email to be sent later automatically using Gmail?

Hello everybody,

  I just finished the beta version of a google apps script that allows you to schedule gmail messages to be sent at a later time. You can check it out here: http://gmail-delay-send.googleco....  It doesn't have all the nice features of Boomerang, but it doesn't require a plugin so you can use it on any device on any computer that you can compose a message on gmail and apply a label.
 




  Please remember that it's not finished yet, but if you would like to participate and give feedback I would love to hear it.

Thanks,
-Blair Kutzman