Comments by Faisal Hayat (Top 1 by date)

You are rite.
This requirements is to exchange messages between users (registered) accessing from different operating systems (Android, blackberry, i-Phone, Windows mobile and windows desktop application). So all these are interacting via an intermediate server (developed in PHP with web-services).
I am on desktop application leading other applications. Can you advice me what should be the suitable and optimized way to do the task. I would highly appreciate your efforts.
Thanks