| HDML (Handheld Device Markup Language) - often compared
to Wireless Markup Language (WML) - is a language that allows the text portions
of Web pages to be presented on cellular telephones and personal digital
assistants (PDA) via wireless access. Developed by Unwired Planet, HDML
is an open language offered royalty-free. According to UP's president Chuck
Parrish, any programmer with working knowledge of HTML, CGI, and SQL should
be able to write a presentation layer using HDML. One major difference between
HDML and WML is that WML is XML-based, while HDML is not. Another difference
between HDML and WML is that HDML does not allow scripting, while WML allows
it's own version of JavaScript, called WMLScript. Although Unwired Planet
has changed their name to Phone.com, specifications for HDML are still available
on their Web site in PDF format. |
