Auth to Gtalk without creating Ignite account?

Hello,

I have the latest OpenFire server with the Karken plugin. I’ve enabled XMPP and GTalk in the plugin config.

Is it possible for my users to connect to my server directly with their Google Apps credentials and then be transparently connected to their GTalk account, or do they have to create (or auto-create) an account and then manually add their GTalk credentials?

Basically, I want to turn off chat in Google Apps and force our users to connect to our OpenFire server with their Google Apps credentials for chatting. Is this possible? Thanks!
openfire-hazelcast-3.1.2.zip (2326471 Bytes)
hazelcast.jar (1027272 Bytes)