A Japanese version of the installation instructions was written by Kazuhito Oyha. Michael Mehlich has written a similar package, hyper . HyperTeX capabilities have been written by Tanmoy Bhattacharya. If you use BibTeX, there are various styles that have support for entries referring to electronic preprints. See BibTeX and Eprints for a list.
Some older examples are available below.
The new Journal for High Energy Physics also has all papers online in HyperTeX format. Similar definitions thus far exist for subsection, figure and table entities. There is also a list for developers of HyperTeX applications and macro packages.