WebSphere® Portal supports mobile devices by generating pages in any markup language. Three are officially supported: HTML, WML and cHTML. Using Rational® tools, you can develop portlet applications that support these markup languages.
HTML is a markup language for desktop computers. All portlet applications must support HTML, at a minimum.
WML is a markup language for WAP devices, which are typically mobile phones.
cHTML is a markup language for mobile devices in the NTT DoCoMo i-mode network.
To edit WML files and cHTML files, you can use Page Designer, as you do when editing other Web content.
For information about markup languages, refer to the Markup guide in the WebSphere Portal Information Center.