Once you sign up, you can set up automated work flows between different services. You can set that an SMS be sent to you when you get an email from a particular (very important) person.
Below is a screenshot of all the list of things you can automate. The list is constantly being updated with new things. Then I'll work us through a demo of automating an interesting task.
Here's how the SMS text notification work.
Somehow I got stuck setting my email so I couldn't complete it. Already set up my phone number.
Give the service a try and Microsoft is constantly updating it with new features.