Suggestion: Vertical Code Editor Guides
I would like to recommend adding the ability to place Indent Guides (i.e., Guides in Visual Studio, vertical guides or guidelines in other produces) in the code editor to help assist line lengths and other potential areas.
I hate having to copy the code into Notepad++ just to check line lengths. Yeah, there are other ways, but that's the fastest at the moment.
An additional suggestion would be to show the current cursor position in the status bar at the bottom of the code window. Best case scenario would be to show what VS shows like current line #, current column #, and character index/#.
Thanks. 
Comments
The status area shows the current line #, current column #, and character index in the upcoming Mac version (this feature will eventually find its way into the Windows version, too).