Mobile is a rapidly developing sector. According to some projections, mobile internet usage will overtake desktop usage before 2015. In preparation, companies are developing new mobile commerce platforms, strategies, and marketing efforts.
Microsoft Tag recently attempted to sum up this constantly changing space with a singleinfographic.
Here's the summary: The mobile market is large; local searches, games, and YouTube are all doing well on Mobile; and socializing is the most prominent use of the mobile Internet. See the full infographic below.