Smartphone users dig apps. Mobile developers dig Apple. Those two truths add up to a whole lot of app downloads from Apple’s iOS App Store. There are currently about iOS 340,000 apps available in the App Store according to Apple’s feeds. Collectively, they will soon have been downloaded a total of 10 billion times. Apple put up a new page to celebrate the imminent milestone, and it is offering a $10,000 iTunes gift card to the iPhone, iPod touch or iPad user who downloads the 10-billionth app. Apple launched the App Store on July 11th, 2008 to coincide with the release of its second-generation iPhone, the iPhone 3G. The App Store hit the 1 billion-download mark on April 23rd, 2009, and it reached 5 billion downloads 410 days later on June 7th, 2010.