Changes

<tr style="background-color:#DDDDDD"><th>Name</th><th>OS</th><th>ConTeXt</th><th>Homepage</th><th>Remarks</th></tr><tr><td>[[pdfTeX|pdf(e)TeX]]</td><td>"all"</td><td align="center">Yes</td><td>[http://www.tug.org/applications/pdftex/ pdftex.org]</td><td>latest version at [http://freshmeat.net/projects/pdftex/ freshmeat] or [http://pdftex.sarovar.org sarovar]</td></tr><tr style="background-color:#EEEEEE"><td>MetaTeX</td><td>POSIX</td><td align="center">No</td><td>[http://www.metatex.org metatex.org]</td><td>tries to provide a fast pdfTeX, MetaPost etc. and kpathsea replacement as C libraries (pre-alpha state)</td></tr><tr><td>NTS</td><td>Java</td><td align="center">No</td><td>[http://www.dante.de/CTAN//systems/nts/ CTAN]</td><td>OO re-implementation of TeX in Java as a base for further enhancements; discontinued, see ExTeX</td></tr><tr style="background-color:#EEEEEE"><td>ExTeX</td><td>Java</td><td align="center">No</td><td>[http://www.extex.org/ extex.org]</td><td>merger of NTS with eTeX, pdfTeX and Omega (pre-alpha state)</td></tr><tr><td>[[Aleph]]</td><td>"all"?</td><td align="center">Yes</td><td>[http://www.dante.de/CTAN//systems/aleph/ CTAN]</td><td>Omega/eTeX merge (former eOmega) by Giuseppe Bilotta (beta state)</td></tr><tr style="background-color:#EEEEEE"><td>[[XeTeX]]</td><td>MacOS X</td><td align="center">Yes</td><td>[http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&item_id=xetex sil.org]</td><td>uses Mac special features; bidirectional typesetting; supported by ConTeXt since [[Context 2004.10.07]]</td></tr>