A working example of using Sinatra with Thin

I have a need to prototype a high performing web-based event logging service and so picked Sinatra and Thin. (High performing within a scripting environment is, perhaps, an oxymoron.) I found lots of help with this effort on the web but nothing quite worked as documented. So, thin-simple-setup.tar.gz is a working example for Ruby 1.8.7, Sinatra, and Thin 1.0.0.