Instant Messaging application / protocol, used in South Korea and developed by SK Communications, part of the SK Group - a large Korean Chaebol. NateOn Messenger has surpassed MSN Messenger as the most popular IM client in South Korea.
From 2007 to 2011, a patch-set was being maintained by a Korean software developer named haze11, who maintained a forum for it at: http://web.archive.org/web/20110318021733/http://nateon.haz3.com/
However, continued development seems to have forked as follows:
1) with the original developer, HazE, at
2) with a privately maintained fork by Kaisyu at
(note: for Windows OS builds, see http://blog.kaisyu.com/2011/12/pidgin-2101.html)