sync LC applications

[paolo mazza]

Mike wrote:
> You can use push without having a notification
> to the user or setting a badge.  The app will receive the notification and
> act on it, provided that the app is up and running on the phone.  I've used
> this technique for five years, I think. 


Hi Mike,
i am interested in your solution.

Can you share a sample or  any kind of documentation of this technique ?

Can I send a notification  to several devices (running the app on the phone) at the same time?

Thanks,

Paolo