How does one marry speech with a mobile touch interface? What does the speech experience feel like in an app? How to you play to the strengths and weaknesses of each? Natural language input is becoming more and more common in mobile apps especially with the arrival of virtual assistants. Design must continue to focus on the user and adapt the usage of the technology accordingly. The experience needs to be natural, intuitive, intelligent, seamless and provide value. This workshop will look at the integration of technologies as they relate to design, modalities, and associated multimodal design patterns, accompanied by real world examples from mobile apps. The workshop will include exercises that allow participants to explore implications for speech design in a multimodal mobile context.