Exclusive and very convenient feature was released along with the recent Google Translate app update. From now on you will be able to use translation in any other application.
Usually in order to find out the meaning of individual words or entire sentence you had to leave the current application and switch to Google Translate to get the required translation.
Now everything becomes easier after the latest Google Translate v5.0 app update. Translator icon will appear at the upper right corner of the screen as soon as you copy single word or whole sentence in incomprehensible language. After clicking on the icon, translated text box will pop up.