Soxer WORKS again. New version release is 0.9.12
The previous bug was severe. It was impossible to upgrade to Sinatra 1.2.3.
The new Soxer version brings cleaner and more concise code, proper scoping, and application modularity as well as simplification of config files for skeleton applications.
The only difference to your applications is, that now - properly modularized - you need to tell Soxer module where your root of the application is. All application directories are referenced automatically, unless you specify them explicitly.