Well known for its tracking of TV audiences - amongst many other markets - US outfit Nielsen has now announced its Mobile Game Tracking service.
The data is generated from a random, weekly sample of 1,200 online interviews amongst active mobile gamers aged 7-54 years old and compared to Nielsen's existing database, which consists of 180 games, tracked over the past 12 months.
Broken down in terms of demographics and gameplay behavior etc, this is particularly important for developers in terms of working out their pre-launch marketing strategy, and comparing their game to competitors in the market.
High level examples of what Nielsen produces can be seen below.
For more details, check out the Nielsen Mobile Game Tracking website.