> I’d like to notify attendees via the web app I wrote You can notify them by email, SMS or using any other messenger. There's no need to force another on your

> I’d like to notify attendees via the web app I wrote You can notify them by email, SMS or using any other messenger. There's no need to force another on your customers. > and have it display schedule information offline. Your customers already have a calendar application, there's no need to make them visit a web page for that. At least there wouldn't if Google supported Webcal so everyone can use their favorite native applications instead. But that wouldn't push people towards Google's services and garbage web apps.