So you've finished your UI design and it's perfect—just the right amount of white space to offset all those tables, forms and buttons. Big sigh of relief. Ahhhhhhh. Then your boss hands you your new task.
54 pixels and 10 pixels: My Start in Touchscreen Interface Design
When I started working on a client's e-commerce touchscreen kiosk application, I scoured the web looking for best practices and usability specific to touchscreen interfaces.