J2ME MIDP and WAP

The Wireless Application Protocol (WAP) is an open specification that addresses wireless network characteristics by adapting several data-handling approaches already in use by Web protocols, and introducing new ones, where appropriate, to the special requirements of handheld wireless devices. The reuse of existing Web technologies eases the development of WAP applications, and make it similar to developing HTML-based Web applications since it is browser-based.

http://developers.sun.com/techtopics/mobility/midp/articles/midpwap/