Sinatra

Is anyone familiar with Sinatra? Is it a framework used in lieu of
Rails -- or within it (I cannnot really tell from the docs).

Anyone's thoughts on this, pro and con?

Hi Janna,
I am working on Sinatra from last 6 months, let me know if you need anything
http://www.sinatrarb.com/ here get the docs,
This framework is tiny but very powerful.