Vote for the best protocol for the given scenario

Question

I have a design decision to make. I need your advice.

Requirements:

• A server and a client. client is typically a mobile phone.
• Connected through t

Answer 1

Option 7 Why don't you go for XMPP?

• It's a standard

• it allows messages in both directions.

• you may use existing XMPP infrastructure (clients might connect using their Google Talk accounts for instance) or easily build your own using open source XMPP servers

• I also like the fact, that you basically only write client code (as the server is also an XMPP client) - assuming server and client are both written in same language, you may even use the exact same code.

• file transfers are supported.

• easily extensible to your needs

• it's buzzing (Google Wave) ;)

The only thing people might argue about is its efficiency - or the efficency of XML in general. I don't think it's a problem though.