Programming on Mac OS X and iOS took in my hobby. I am writing on the Objective-C and Swift. Not only that, this is my hobby, but also brings a pretty good income. Created applications such as AttachIt for iOS. The app allows you to send photos from your iPhone or iPad in the amount of more than 5. Xsan Recovery Tool to recover data from failed or broken Xsan raids.
Programming for Windows, I use mainly for writing small programs, converters, bots for games like World of Warcraft and The application for the calibration of meters of liquefied gas sensors based on Hall. For example fulfilled the order for writing programs that use the database user names and passwords puts 5 stars and generates a good review in the iTunes application.
All of their services to the Internet, I prefer to write in PHP. For example Converter Microsoft Excel 97 to database managed by VirtueMart Joomla. Web applications client-server to track calls and execute customer orders in the IT department technology. Also a lot of small scripts like site parsing, PHP-script antivirus for cure PHP-Worms script on the hosting.