I like the convenience of Service Desk. Customers can login and create tickets as they need to. As technicians, we also create tickets related to an issue; As well, we create a ticket due to a current project we're working on. I've also noticed I've been using Service Desk as my ToDo List. I use service desk everyday and I like the convience of it. It would be great for me to have a Projects Tabs and group all related tasks under that project and a ToDo Tab as well.
Great feedback, and I love hearing that you're getting a lot out of Service Desk. You can potentially group incidents by linking them to Changes or Releases. This would allow you to see the number of outstanding issues against a project.