WML is a more advanced protocol than
HDML since it is based around XML (Extensible Markup Language).
MessageVine provides the location management service, which works with WAP, i-mode,
HDML and other platforms, by interfacing with mobile positioning services on carriers' networks.
The Irish m-commerce systems provider Wapprofit has launched what it claims to be the first wireless Internet content creation software to support the WAP, iMode,
HDML and AvantGo standards.
(ChanneLinx vice president Bob Thomas says that when the company showed a prototype Web phone to users last year, most found the screen too small.) But Buildscape also supports phones with browsers that use Phone.com's hand-held device markup language, or
HDML. Meanwhile, EqualFooting, whose integrated catalog includes the catalogs of 10 construction and industrial suppliers, has partnered with Nextel because Nextel's phones are popular among contractors.
Other advances include the handheld device mark-up language (
HDML), which refines HTML for display on small handheld devices, and WML, part of the wireless application protocol and a subset of XML.
Now, members of the WAP Forum--the consortium that promotes the specification--are squabbling, problems with transport layer security have arisen, and
HDML, which was superseded by WAP two years ago, is still being promoted by some Forum members.
InfoSpace.com's Wireless Services allow carriers to support a variety of emerging devices and protocols such as WAP servers, PQA for Palm VII and VXML, in addition to
HDML, SMTP and proprietary standards used by various paging networks.