This article is from the MachTen & CodeBuilder FAQ, by Jaime Julca firstname.lastname@example.org with numerous contributions by others.
MachTen opens up new markets for Apple to offer Macs and Power Macs as
inexpensive UNIX and X software development platforms. It also lets users
integrate every Macintosh in the environment with all the other processors
in the enterprise -- it doesn't even have to be UNIX-based -- anything
TCP/IP-based can interoperate with a Macintosh. On the one hand, MachTen is
an inexpensive UNIX development environment; on the other hand, it is an
excellent connectivity tool for the Macintosh. MachTen can turn a Macintosh
into a complete Internet server or a high-performance X terminal.