Sublime Text 2 is a text editor for OS X, Linux and Windows, currently in beta.
The first time I've seen this improvement was in IntelliJ IDE.
If nothing is selected, make the Copy command (super+c) copy the entire line.
The same goes for the Cut command (super+x).
The reason is that mostly one is working with a particular language. And in that case, creating a new file is usually for that language.
Customer support service by UserEcho