After seeing the impressive work of Siri on Apple’s iPhone 4S, how many of you want to get the similar functionality on Mac OS. Well, the same firm that provides the Siri feature of speech to text, Nuance has just launched a new application for Mac OS in the Mac App Store. The new Dragon Express comes as part of the company’s premium dictation software called Dragon Dictate.

The new Dragon Express is come at the price of $49, and brings the minimal feature of Dragon Dictate to OS X users inside the menu bar. The application sides in the Lion menu-bar, and allows to quickly move to the dictation window, as well as also comes up with voice system control functionality Dragon Express adds the ability in your Mac to get voice input commands for performing an action on your machine. You can simply use it as iPhone 4S Siri.

Dragon Express provides an cool window to directly input voice command to send / write email, Google, copy & paste, as well as the new dictation application is baked with some social crunch allows you to voice over tweet and Facebook status update, right from your Mac OS. It appears that the new application fills up the Siri lacking feature of Social Crunch. The Application also comes up in a cool price of $49 in the Mac App Store.