With mobile computing catching pace with the fast moving world, apps for BlackBerrys, iPhones, Droids and other gadgets have become important software. App developers are hence getting a blast of opportunities. According to Gartner Inc., trackers of information technology globally, app stores had more than $4.2 billion in revenue last year and is estimated by the analysts to rise up to $29.5 billion by 2013.

Lisa Allen, a Board Director of Mobile Monday Mid-Atlantic said, "Today's mobile phones are as powerful as many desktop PCs, if you consider that they're also location-aware and have a built-in billing and payment system. We're seeing people run their entire lives, even their entire businesses, from their mobile phones”.

The revolutionary Apple Inc.'s iPad, a 10-inch touch-screen computer is probably going to mount the “apps roar” further. There is an ongoing search for app developers to create applications for Amazon's Kindle wireless electronic reader.

Mickey Alam Khan, editor of the online trade publications Mobile Marketer and Mobile Commerce Daily, "Apps offer individual, independent entrepreneurs the ability to own precious real estate on their customers' phones. They also open up another revenue stream in addition to the Web".

Apple announced 3 billion apps downloaded from its App Store from among more than 100,000 titles this month. Google's Android Market has 20,000 and BlackBerry App World has 4,000 titles.