What is WAP?
Added 30 Jul 2008
In 1997 a company now called Phone.com developed HDML (handheld device markup language) and a browser (called a UP.Browser) to read it specifically for bridging the gap between the internet and wireless device such as cell phones and personal digital assistants (PDA). The focus was primarily on small-scale implementation like viewing stock prices, sports scores and the like.
Phone.com
later joined Ericsson, Nokia, and Motorola and founded the Wireless
Application Protocol (WAP) Forum. WAP is an open, global specification
the purpose of which is to allow mobile users with wireless devices
easy access to the wealth of information on the Internet. As part of
the standard, WML (wireless markup language), a fully XML-compliant
descendant of HDML, was developed to code pages for viewing via a
micro-browser that resides on a mobile phone, pager or PDA. WML is
gaining acceptance as newer generations of UP. Browsers continue to
ship with todays phones and support both WML and HDML.
Google's offers great support for those with WAP browsers. If you are using a WAP device when searching, Google will not only translate the original page that you select from its search results from HTML into a WAP format, but if you select a link from that page, Google continues to translate as you make your way through the web. In addition, Google has recently completed a crawl of WML pages, and it may integrate these into its main index and ensure that they rank more highly in response to searches from those using wireless browsers.
A relatively new product is Instant Wap, which is totally transparent to the visitor. If they view the site with conventional browsers, they see your site. If they log in from their PDA, they see the wireless version of your site. There's no need for a special "wireless URL," no need for instructions or help pages.
Another
development tool is PenDragon
Forms which allows you to build high powered, full
featured data
collection systems for Palm OS devices in minutes. PUMATECH-Satellite
Forms allows you to create PALM OS applications with
"drag-and-drop" ease. PenRight
ModileBuilder is a Mobile Application Development tool
specifically designed to quickly create,powerful, world class,
cross-platform, custom enterprise applications forPalm OS.
1) The screen size is roughly 230x250 (having no scroll bars)
2) Some devices can only display 12-bit color while others can display16-bit color, so you'll have to watch gradient banding.
3) There are HTML limitations that are covered in a white paper from Microsoft, which provides a free development tool.