Nielsen just released their Q3 and Q4 2010 State of the Media for mobile video usage. In the report they state that mobile video users jumped some 40% just both Q3 and Q4 in year-over-year numbers.

According to the results of the 2010 Video Email Marketing Survey and Industry Trends Report, 7 in 10 marketers are currently deploying video email campaigns because marketers realize that audiovisual content draws a higher engagement rate than static content.