What will the mobile application ecosystem look like in 2015? Think large and lucrative. App downloads worldwide will increase at a compound annual growth rate of 56.6 percent between 2010 and 2015, with downloads reaching 98 billion a year by the end of the forecast period, according to a recent report issued by Berg Insight. The forecast hinges on the app ecosystem continuing to evolve and improve, of course. So far, so good: Innovative and immersive new mobile experiences are entering app stores every day. Each month, FierceMobileContent looks at the best of the best, spotlighting the new apps that you need to download to your smartphone ASAP. Click here for the best new apps of October.