As mentioned above. you can use gizmo as a jabber server. If you setup a gizmo account and use the chat.gizmoproject.com sever in the tablet jabber client, then a contact called "IM and Buy" will appear in your contacts list. If you initiat a chat with it and send it a message it will allow you to add your msn, aim and yahoo account interactivly without the need for using another jabber client elsewhere and adding services.
just another quick way of getting access to buddies on the different clients.