Is it to possible create a simple chat facility using XMPP with Google App Engine?

I would like to create 开发者_开发百科a web IM chat system using Google App Engine using XMPP possibly.

It would allow users of a social network to talk with each other. Is this possible using GAE?

I haven't used GAE before. Does anybody know of any good examples/code which I could look into to get started?

If all your communication is between users who are interacting with your site directly, there's no need to use XMPP, or benefit from it - just write your IM system into the site directly. XMPP support is designed for interaction with external IM services.

Alternately, you could embed the Google Talk gadget in your site, but that will require users to sign in to their Google accounts to use it.

It's certainly possible. I would start with reading http://code.google.com/appengine/articles/using_xmpp.html in order to get started.