VxmlSurfer is a modular, multi-platform, extensible VoiceXML 2.0 interpreter, geared to Web browsing as opposed to telephony. VxmlSurfer is currently used as a user interface for the HearSay non-visual Web browser.
Talisman is an interpreter for a logical markup language. This language contains the content and logic of a web (or, in the future, Java Swing) based user interface, including arbitrary datatypes and processing actions.