4. HB++ HB++ is considered to be one of the best development environments for Windows mobiles and Palm OS smartphones. HB++ for Palm OS is designed to accelerate the development of robust, enterprise-grade Palm OS applications for today's mobile workforce. With the use of HB++, developing handheld applications and connecting them to the enterprise data becomes fast and easy. 5. Silverlight Microsoft Silverlight is a website application development framework that is indeed these days as it incorporates multimedia, animation and graphics. Although Adobe's incumbent Flash platform remains more popular, it is competing with Flash, java FX and AJAX as well in the world of mobile app development. Apart from providing high quality video, Silverlight application development also gives complete control over rich media content to the content providers. The list of certainly not exhaustive. Adding to the above five skills, there are some other mobile app development skills as well that the employers are creating demand for. Some of theses skills are - Qt, Adobe Flash Lite, CSS programming, Python and Apple's proprietary Xcode development language. As the sales of mobile devices is growing, so as the demand for specialized talents.