Perhaps with a proxy server like MSN Proxy it could be possible, as it can disable the "user-is-typing" messages, but I don't know if it's possible at the moment.
Typing message - by The_IRS on 09-18-2004 at 11:51 PM RE: Typing message - by TGG on 09-19-2004 at 09:44 AM RE: Typing message - by Anubis on 09-19-2004 at 10:00 AM RE: Typing message - by Millenium_edition on 09-19-2004 at 02:52 PM RE: Typing message - by Tarry on 09-19-2004 at 03:36 PM RE: Typing message - by saralk on 09-19-2004 at 04:41 PM