"Adobe(R) Wave™ is an Adobe AIR application and Adobe hosted service
that work together to enable desktop notifications. It helps
publishers stay connected to your customers and lets users avoid the
email clutter of dozens of newsletters and social network update
messages. Adobe Wave is a single web service call that lets publishers
reach users directly on their desktop: there's no need to make them
download a custom application or build it yourself."
Em, why not use atom format and atom pub?