Visual Studio 2010 has now incorporated the ability to zoom in and zoom out of the editor. This feature is activated by holding down the control key and using the mouse wheel to zoom in and out. The image below shows the editor zoomed in to 345%, which is displayed in the bottom left corner.

If you're a keyboarder  like me then you'll be wanting to know how this can be achieved without using the mouse. The default settings don't support this, but you can easily map the correct commands to keyboard shortcuts. The commands you’ll need to map are:

view.zoomin

view.zoomout

These can be set through Tools > Options > Environment > Keyboard