How to format Date object in a custom way or using locale

When you want to format your Date object in Actionscript instead of building string on your own (using getDay() and other functions provided by Date object) you can use Date Formatters. Unfortunately there are

Adobe AIR mobile app - how to get screen orientation?

In my recent project I had to get current screen orientation in my mobile app. How can you do this in Flex? I believe there are many ways to achieve that but here is my solution.

Flash Builder cannot locate the required debugger version of Adobe Flash Player

Recently I had a problem with my debug Flash Player when I wanted to debug my app from Flash Builder. When I launched debugger I got something like this: