Opera Mobile Emulator renders pages as close as you can get to how it would look on a real phone. Developing for mobile phones and tablets becomes a breeze. The emulator is super simple to install and lets you do serious mobile development from your desktop.

You can use the launcher to spawn multiple Opera Mobile instances with a defined resolution, pixel density, input mode and more, and save your settings as profiles for future testing. You can also connect the Opera Mobile Emulator to Opera Dragonfly and do your mobile CSS, JS and performance debugging, using a powerful developer toolkit.

Requirements: -
Demo: http://www.opera.com/developer/tools/mobile/
License: License Free