This is the third in our series of six app-related articles. See also:
• It’s all about the design. Essential tips from user experience gurus
• Mobile applications: native v Web apps – what are the pros and cons?
• What is a mobile Web app? Here’s expert opinion from the W3C
• The open market approach: Q&A with GetJar, the No1 independent app store
• How museums bring collections to life with augmented reality