Sencha Touch - The leading mobile web app framework based on HTML5 for amazing mobile apps.
Axure - The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.
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Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
MyEclipse - Hybrid mobile app technology is the wave of the future.
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project