came from python (and tornado) to ruby, if it wasnt for sinatra, i'd have stayed with python and tornado. great work, keep up the clean syntax and lightweightness.
can't go back, at least not now, at work we've standardized on ruby. for personal projects, i've also decided to stick with ruby as well, the main reason being mostly the gem package manager and community support, not saying that python doesn't have a good community with great libraries (egg, setup tools, etc), but ruby's just cleaner for me with regards to web app development.