XHTML-MP Style Guide Appendix A

While XHTML MP enables the creation of visually appealing pages, developers with a background in WML or HDML will find that some of the features available in those mark-ups are no longer available. Because of this, migrating from WML/HDML to XHTML cannot be automated and a more reliable and functioning application will result from doing it manually with the help of the information presented here. This chapter gives an overview of the differences between WML/HDML and explains which alternative constructs can be used for features that are no longer supported.

http://developer.openwave.com/dvl/support/documentation/guides_and_references/xhtml-mp_style_guide/appendixa.htm