Most readers of this humble blog will be very aware of my personal opinion about Mono and specifically with regards to where it should belong in Ubuntu.
Free and Open Source Software projects are built using a wide variety of programming languages. Blackduck who study this kind of thing have released some interesting data regarding the use of various languages to develop FOSS applications.
C# (the language of choice for Mono advocates) is languishing in 10th place behind Perl, Python, PHP, Java and many not insignificant others.
