A growth of 44% compared with the previous month and a growth of 142% compared to the previous year is exceptional. The traffic of 3,709 M in December 2012 is up from 372 M in July 2010 in other words there has been a tenfold growth in less than 2 years.
It does vindicate the effort that goes in making MediaWiki look good on mobile phones.
Thanks,
GerardM