"New File" feature for OS X?
Neu allows you to do this. It's shareware and is currently priced at $10. There is also a fully functional free demo you can use. You can purchase it from MAS or from within the demo version.
About Neu:

Neu is a simple application that makes it easier to create new documents in the Finder, without you having to open an application first.
It does this by adding &quot;Create Document...&quot; and &quot;Create And Open Document...&quot; menus to various places, including the main menubar, the Dock, and the Services menu that the Finder shows when you right-click on something. You can also trigger Neu from any application using a special key combination.
Neu lets you choose what to make from a list of templates, which are simply existing files. Once you've chosen a template, Neu creates a copy of it, brings the Finder to the front, and selects the new file.
Neu comes with some pre-defined templates, but you can add your own, so you can customise the types of new file available to suit your needs. It can make a blank text file, an empty letter, a shopping list, or anything else that you want. You can have one template, or a hundred - it's up to you.