While at Mobile World Congress in Barcelona a few weeks back I heard a very interesting statistic:

• The World Wide revenue for SMS by FY10 is expected to reach $67BN by 2012 (2006 revenues were $47.5BN).
• Digital music revenue in 2007 ‘soared’ to $2.9BN with mobile music expected to be worth $11BN by 2012..

The point that was made to me: music is an interesting way for mobile operators to generate incremental profits but remains a marginal business compared to core mobile revenue opportunities such as SMS.

Very interesting statistic.