The Guardian

The opportunity is mind blowing for both entrepreneurs and established businesses in this billion-dollar industry. According to research firm Gartner, the number of mobile apps has risen from 2,500 last year to 4,500 this year, with a US$2 billion increase in revenue from app downloads to US$6.2 billion in 2010. By 2013, total sales are expected to hit US$29 billion. The UK’s mobile content market alone is worth US$1.5 billion and set to enjoy further rapid growth, in line with global growth.