You can join our public chat channel via your jabber id or gtalk account. Using an IM client like pidgin. http://www.pidgin.im/
A popular plugin for pidgin is OTR which is used for encrypting IM's.
Once you have pidgin installed and running, Follow these simple steps to join the "gridchat":
Alternatively, You can join us in the jabber/XMPP gridchat room with this web based jabber client: Web Based Chat