According to a recent Gartner report SmartPhone Sales are up 43% (selling 153 Million units in 2012).
According to an SEOMoz report less than 10% of business are using Podcasting in their marketing. So you could start a blog and be one of the tons of blogs out there, or you could start a podcast and stand out.
Meanwhile an IAB report states that advertising on Mobile devices jumped 95% over last year, and online advertising is up 14% with a record setting 17 Billion for the first half of 2012.
All signs show podcasting going up. Are you coming with us?