I know that it works on my Linux Box (i386) with Debian 3.0 (it shouldn't
be too difficult to run it on another box. If it doesn't work for you,
mail me)
Since the 0.2 version, it also runs on Ms Windows. To build gtklepin under windows you can use mingw (use something like "-mno-cygwin -fnative-struct -mwindows -liberty" if you want it to run correctly). You can find gtk+ for windows here. Usually the win32 version is more buggy.
Warning: You should convert your files to utf-8 before using them with gtklepin 0.3 (Gtk+ 2.0 uses utf-8). You can do it with "iconv -f old_encoding -t UTF8 oldfile > newfile" (you can use "iconv -l" to list known character sets). If your files are in pure ASCII, you can forget all this stuff :-)
This is a notebook that uses the GTK+ toolkit. It has similar functionality to the notebook found on the Psion Revo PDA.