Mark Hammonds
Mark is a software engineer, entrepreneur, and author living in the Baltimore, MD area. He founded several companies in the online media, mobile, and consulting industries, and currently works for OmniTI building scalable Internet architectures by day and coding iPhone/Android/SMS applications with Somba Mobile by night.
Tutorials

Working with the iPhone 5 Display

Objective-C Literals

iOS Simulator Tips & Tricks

A Developer Looks at iOS 6 and the iPhone 5

Enhancing a Photo App with GPUImage & iCarousel

Build a Photo App with GPUImage

Five Tips for Creating Stylish UIButtons

iOS SDK: Working with UIAlertView and UIAlertViewDelegate

Mobile Web Quick Tip: Phone Number Links

iOS SDK: Using a Slider to Scrub a PDF Reader

Full Screen Web Apps

Flash Mobile: Developing Android and iOS Applications