WP7 Callbacks From WCF

I'm working on a project that relies heavily on communication between multiple WP7 devices. I wanted to use WCF callback contracts to create a subscribe/unsubscribe architecture for my services however I have recently found out that I can't use wsDualHttpBinding on Windows Phone 7 but only basicHttpBinding.

Can anyon开发者_JAVA技巧e suggest any approaches using basicHttpBinding which might allow for a similar approach?

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You could always use Push Notifications to send the data to the phone (the other option would be polling the server at a predetermined interval which would kill battery life on the device).

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You could look at using (raw) Push Notifications to tell the app that there is a new message on the server to retrieve.