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Peter Saint-Andre has been involved with the Jabber.org open-source project since December 1999 and is executive director of the Jabber Software Foundation and primary author of the XMPP Internet-Drafts. He has also written a HOWTO for WinJab, a popular Jabber client for Win32 systems. Kevin Smith is currently Chair of the XMPP Council, having served as a Council member since 2006, and is also the co-author of several XMPP extensions. He has been the project leader on Psi, a popular open-source client for Jabber/XMPP communications since 2004, and has contributed to various other XMPP projects, covering code libraries, automated bots and assorted XMPP utilities. Remko Troncon is the lead developer of the Psi Jabber/XMPP client, and a contributor to various other XMPP-related applications. He has been a member of the XMPP Standards foundation since 2004, co-authoring and contributing to several XMPP extensions. He holds a Ph.D. in Engineering (Computer Science) from the Katholieke Universiteit Leuven.