Essentially the choice was made upstream (by Gnome). But there are a lot of advantages:
No Mono
It's lightweight and crash free
Better integrated with the Gnome Desktop
It has support for the RAW format
Some basic editing capabilities
As stated on the comment above the elimination of Mono from the default install would be a huge bonus, less occupied space, and less conspiracy theories evolving Microsoft and .Net running about.
The specification for this decision is here
Here (Sorry, this show has been removed from Blip.) is a video clip where we discussed Shotwell (and other apps) at the Ubuntu Developer Summit.
Essentially the choice was made upstream (by Gnome). But there are a lot of advantages:
As stated on the comment above the elimination of Mono from the default install would be a huge bonus, less occupied space, and less conspiracy theories evolving Microsoft and .Net running about.