The UK Government’s Office for National Statistics has just  released their Internet Access – Households and Individuals, 2011 report (.pdf)

Key findings:

77 per cent of households now have Internet access

45 per cent of Internet users used a mobile phone to connect to the Internet

6 million people accessed the Internet over their mobile phone for the first time in the last year

The use of wireless hotspots almost doubled in the last 12 months to 4.9 million users