Can I use iChat with MSN through its new XMPP/Jabber compatibility? The Windows Team blog announced XMPP compatibility with their MSN/Live IM network recently. 

Have anyone tried to get iChat to work with MSN yet? 
(I'm not looking for Jabber transports)
No, it is not implemented yet.

In the meanwhile, you can use Cocoon for MSN chat as an iChat extension.