In anticipation of a 1.2.0 version of Syntax CMS, we have checked in an upgrade to how Sections work.
Previously, every section had to have a unique URL ID. This meant if you had a series of top level sections like "Marketing", "Tech," and "Consulting", you couldn't have "/marketing/about/" and "/consulting/about/" simultaneously. We had to resort toURIs like "/marketing/about_marketing/" or "/consulting/about_consulting/".
If you check out the latest CVS files, however, you can have "/marketing/about/" and "/consulting/about/". The only restriction, invisible to the user, is that you can't have two sections with the URL ID "about" under the same section...i.e., you can't have two sections with the URI "/marketing/about/". Now Syntax CMS will handle this case by creating "/marketing/about/" and "/marketing/about1/"...and "marketing/about2/" and "/marketing/about3/" and so on, as needed.
If you're upgrading, bear in mind it does require a database upgrade. Anything that relies on the assumption that a section's URL ID will be unique may break. However, anything using the standard SectionNavigator classes should still work unless you are passing a URL ID for any reason (these should now be the full URL path, which actually includes the URL IDs of every section from the top-level section down to the current section).