How big is the mono runtime, and how does it compare in size to other popular runtimes like python, ruby and java?
Taking debian SID and installing the minium required to run a hello world program gives:
RUBY - 13.1 MB
OPENJDK - 137 MB
PYTHON - 17.7 MB
MONO - 11.5 MB
QT - 28.8 MB
This makes Mono the smallest of all languages investigated.
This is taken from blog post by the mono packager directhex.