Luke Wroblewski's Touch Gesture Reference Guide is a set of resources for software designers and developers working on touch-based user interfaces. The guide contains: 1) an overview of the core gestures used for most touch commands 2) how to utilize these gestures to support major user actions 3) visual representations of each gesture to use in design documentation and deliverables 4) an outline of how popular software platforms support core touch gestures. Downloadable in PDF, EPS, and OmniGraffle formats.