Incredible photographs from around the world are only an app away. 500px has officially launched an iPhone version of their highly acclaimed iPad app. Of course, the free portal to content from the 500px website has been optimized to take advantage of the larger iPhone 5 display.

500px version 2.0 features an all-new, designed from the ground up user experience made just for the iPhone. This includes the Flow timeline feature optimized specifically for mobile devices. Although this current version does not provide for photo uploads from the iPhone, the feature is in the works for future release.

The iPhone 5 release has pushed Apple over the top. Regaining its lead for the first time since March, Apple's iOS smartphone sales are once again dominating the US market. According to Kantar World Panel, Apple is on track to surpass the previous high of 49.3% of smartphone sales seen after the iPhone 4S launch.

Second place Google Android is not far behind at the moment, but the devices have seen a sharp decline in sales with the iPhone 5 launch. Google's share of US smartphone sales had surpassed 65% just one year ago. While Windows and other smartphones linger at the bottom, BlackBerry maker RIM has seen a steady decline in US sales over the past two years.

Besides being highly recognizable brands the world over, it turns out Apple and Harley-Davidson share an interest in one trademark. You may have heard of Lightning, Apple's 8-pin connector that debuted on the iPhone 5. Patently Apple has discovered European Union documents indicating that Apple acquired a partial transfer of Lightning from original owner Harley-Davidson.

H-D Michigan Incorporated is the intellectual property arm of Harley-Davidson, which owned the Lightning trademark to cover various items including motorcycle electrical parts, turn signals, eye glasses and helmets. Lightning also covered television sets, computer game programs and more. According to the report, Apple seems to have acquired only those parts of the Lightning name relevant to its business.

Facebook is now getting a slice of the Apple iTunes gift card business. A new addition to Facebook Gifts is the ability to purchase digital gift cards good for purchasing music, movies, apps and more on the iTunes store. Buying one of these iTunes gifts simply involves logging into Facebook, charging the gift to your credit card and sending it to a Facebook friend.

How much easier could it be to shop for the holidays? Facebook now has over one billion users every month, and the site is looking for new ways to increase profits. Apple's iTunes gift card business clocks around $2 billion per year. Could Facebook Gifts and iTunes be a match made in heaven?

Apple's Maps manager Richard Williamson was fired after flaws in the mapping software "hurt" the iPhone 5, according to Bloomberg. Senior Vice President Eddy Cue fired Williamson, who oversaw the Apple Maps development, on Tuesday. Unnamed sources familiar with the matter told Bloomberg Cue is planning to “install a new leadership team” to oversee the Maps application, and is seeking advice from outside mapping-technology experts TomTom NV.

Apple has been criticized for ditching Google Maps for its own inferior mapping software. The Maps debacle didn't hurt iPhone 5 sales, but it did force Apple CEO Tim Cook to issue a rare apology for an Apple product. The Apple Maps mess also prompted Nokia and Google to create rival mapping apps to be used with iOS devices. Nokia's HERE app is already available for download, while Google is expected to unveil its map application in the near future.