I wanted to build this app since I bought my WP7 but unfortunately it wasn’t possible to have background tasks running on the phone. It was great to know that Mango would bring this functionality to the Windows Phone and I started working on the app right away.
Since I program these WP7 apps outside work it takes a while to get them done. Geo Reminders allows us to program alarms or reminders depending on our location. This is useful to set a reminder for the next time you visit a place for example. Or imagine that you left a book at work and you want to bring it home, you set the reminder that will only go off when you arrive at work so that way you can grab the book and put it near your stuff when you leave.
Here are some screen shots:
The application is available since early March in the marketplace. You can download it here.