James is a technologist, writer, developer & practitioner who has been working with the mobile web for over a decade. He is Senior Director of Developer Relations at Sencha. Previously he was the CTO at dotMobi and has a background in mobile startups, telecoms infrastructure and management consultancy. He speaks extensively on the topic of mobile web development, and has written books for both Wiley and Wrox. James led the development of mobiForge, DeviceAtlas and ready.mobi, and is the creator of tinySrc, the WordPress Mobile Pack, WhitherApps, modernizr-server and confess.js.

-Luke was Co-founder and Chief Product Officer (CPO) of Bagcheck which was acquired by Twitter Inc. just nine months after being launched publicly. Prior to this, Luke was an Entrepreneur in Residence (EIR) at Benchmark Capital and the Chief Design Architect (VP) at Yahoo! Inc. where he worked on product alignment and forward-thinking integrated customer experiences on the Web, mobile, TV, and beyond. Luke is the author of the upcoming book Mobile First, two already popular Web design books (Web Form Design & Site-Seeing: A Visual Approach to Web Usability) and many articles about digital product design and strategy. He is also a consistently top-rated speaker at conferences and companies around the world, and a Co-founder and former Board member of the Interaction Design Association (IxDA). Previously, Luke was the Lead User Interface Designer of eBay Inc.'s platform team, where he led the strategic design of new consumer products (such as eBay Express and Kijiji) and internal tools and processes. He also founded LukeW Ideation & Design, a product strategy and design consultancy, taught graduate interface design courses at the University of Illinois and worked as a Senior Interface Designer at the National Center for Supercomputing Applications (NCSA), the birthplace of the first popular graphical Web browser, NCSA Mosaic.