WAP stands for Wireless Application Protocol and is based on WML (Wireless Markup Language), which is closely related to HTML (Hypertext Markup Language).
WAP is independent from any other mobile standards, therefore it is compatible to all popular mobile communication networks. WAP is becoming the de facto world-wide standard for information and telecommunication service on mobile phones or other wireless devices such as PDAs, palmtops etc.

Our servers can serve wml pages, scripts and applications (.wml, .wmlc, .wmls, .wmlsc, .wbmp)

The programming language required to make web pages viewable on a wireless device is Wireless Markup Language (WML), an HTML type language which can be parsed in wireless device microbrowsers.
If you do not know how to code WML, a translator will be required to transform your static HTML pages into WML pages. There are several translator/gateway products on the market with few of these programs being both. Some companies that produce these are Oracle,IBM, Spyglass, Proxinet, EveryPath, and AvantGo. None of these programs are cheap, however the costs are expected to decline in the future much like products for HTTP have declined over time.