Thanks for all the interesting responses. Here is Apple's description of the Push notificaiton process: http://developer.apple.com/library/mac/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html
There appears to be a similar framework for Android: http://developer.android.com/google/gcm/index.html To clarify, this process uses a "Device Token" which is generated per app/iPhone . The UDID is not shared with the notification provider (ie the web2py app). This process is not designed as an alternative to authentication. I am looking at OAuth in addition to Push notifications. Push notifications It is merely to notify the user of status changes with the application. Fortunately my potential requirement will only involve authenticated users receiving notifications. I would be guessing that the Device token would be attached to the session data and/or to the auth_event table. Presumably, users can be simultaneously logged in on iOS and Android devices and would expect to receive the correct notifications for their respective devices. At this point I have done very little research into this, but I wanted to start discussing these schemes with other developers who are encounter similar needs. -- --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.