...It is still only ver. 0.01, but already has a basic ICQ client functionality. Proton is entirely written in Delphi and uses the wonderful Open Source Delphi component ticqlib http://sourceforge.net/projects/ticqlib
mjcq is a command-line based ICQ client program written in pure JAVA and so is cross-platform. It uses the "jcq2k ICQ2000 OSCAR protocol plugin" library developed by Filippov Evgenii. (http://sourceforge.net/projects/jcq2k/)
mjcq provides an interface