Extension-less URLs

Flynax script has two options:

1. URs with .html
2. URLs with forward slash (/)


Why not to include a 3^rd option with extension-less URLs? They are more user friendly.

Examples:
www.flynax.com/features.html - .html
www.flynax.com/features/ - forward slash
www.flynax.com/features - extension-less

I think the option 2 and the 3rd one that you suggested are the same

The 3rd option has no forward slash (/) - called extension-less URL.

Here is a great article explaining why we should avoid file extensions and instead use extension-less URLs:
http://www.codingthewheel.com/archiv...t-time-forgot/