If there’s one area that’s paying out plenty of money, with no end in sight, then you’d probably want to check out what developers for mobile apps are doing. This year alone, smartphone owners spent a staggering $6.2 billion on mobile applications according to market watcher Gartner – with predictions of revenue jumping almost 60 percent for 2010. Now the interesting thing is that the cash will come from just 18 percent of the applications we download while the other 82 percent are from freeware apps. Gartner predicts that roughly 4.5 billion apps will be downloaded in 2010 – with paid apps consisting about fewer than 810 million. So roughly it comes down to an average price of $7.64 per app! Obviously most apps cost less than that, but ones like the TomTom would typically boost the numbers to counter balance it. Those free apps are also doing their part by providing some revenue thanks partly to the advertising they will present the user. From the sound of it, developers are sitting comfortably as more people convert to smartphones and experience the joys of downloading mobile applications.