Texstudio v2.7.0 has been ported (2014/03/18) to OS/2.
"TeXstudio is a platform-independent LaTex editor which gives you advanced possibilities to write your texts."
This port requires the Qt 4 libraries and libc064.dll .
Link: ftp://ftp.netlabs.org/pub/qtapps/texstudio-2.7.0-os2.7z
Official link: http://texstudio.sourceforge.net/
Ported by Elbert Pol