Kiip lets premium brands provide rewards to casual mobile gamers for in-game achievements. Their platform is designed for in-game engagement via a universal game moment: the achievement moment. Catch the user while they are the most engaged, happy, and attentive. They're the first solution to help premium brands reach the exploding casual mobile gaming market using real estate in meaningful moments. Currently the network reaches just over 20 million smartphone players worldwide.
A bit more here: http://bit.ly/kiipwelcome