Another common and confusing term is WAP. An abbreviation for Wireless Application Protocol, WAP allows users to access information via handheld wireless devices such as mobile phones, pagers, two-way radios, smartphones and communicators. In simple terms, its main use is to enable access to the Internet (HTTP) from a mobile phone or PDA.
WAP supports most wireless networks including CDPD, CDMA, GSM, PDC, PHS, TDMA, FLEX, ReFLEX, iDEN, TETRA, DECT, DataTAC, and Mobite. It also supports all major OSes.
A WAP browser provides all of the basic services of a computer but operates within the restrictions of a mobile phone, such as its smaller view screen. WAP though supports HTML and XML, the WML language (Wireless Markup Language) is specifically devised for small screens and one-hand navigation without a keyboard.