所有你需要的是XMPP在Android 。然后，您可以用GTalk的任何其他XMPP服务器，，但请务必注明的全JID（如user@gmail.com）作为登录名。

All you need is XMPP on Android. You can then use GTalk as any other XMPP Server, but make sure to specify the full JID (e.g. "user@gmail.com") as login name.