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Hi, I need a whatsapp clone for a small userbase: 4k at it's peak. I just need a very basic implementation of xmpp for server side and iPad app.
Server authentication through client using username/password (already stored in my mysql database)
Live chat between users
Push notification message(s) when user is not online using the iPad app (I can provide APNS certificate)
Add user to firiend list by entering username of friend to be added
We should use SSL for all client/server communications
No need for design, I'm just looking for implementation.