Opera’s state of the mobile web report has been released for May 2010.
One of the findings that struck me the most is:
It turns out that the prime time for mobile browsing in every country was at night, from 8 p.m. to midnight. This holds true for all the countries in the top 10, with the real variation coming at other times of the day.
My guess at why this is the case would be entirely based on what I do. I sit down at night and flick through my Google Reader feeds or other sites. I don’t really get the chance to do this during the day. Whilst I don’t think the majority of the mobile internet population is flicking through Google Reader, I imagine they still just want to flick through the internet and at night is when they get the time to.