Why this sudden facination with Mono apps? Mono is a great technology, but it is not the only game in town.
- Think Diva is cool? Pitivi is a more mature women.
- Beagle-ing your way to the your docs? What about Tracker?
- Your heart screaming for Banshee? Rhythmbox might beat to a better tune for you
Then there are cool Python apps like Jokosher, Serpentine, gramps and the Gourmet Recipe Manager.
Don't get me wrong, Mono is great. But lets focus on what really matters, great apps, not what they are built with.