We propose a method for rapid development of dialogue systems where a Grammatical Framework (GF) grammar is compiled into a complete VoiceXML application. This makes dialogue systems easy to develop, maintain, localize, and port to other platforms, and can improve the linguistic quality of generated system output. We have developed compilers which produce VoiceXML dialogue managers and ECMAScript linearization code from GF grammars. Along with the existing GF speech recognition grammar compiler, this makes it possible to produce a complete mixed-initiative information-seeking dialogue system from a single GF grammar.