If you want simple, the basecamp by 37Signals is probably as simple as it gets, but I (along with loads of others) think its too basic. With PMSs you tend to get the 2 extremes, there’s the very simple systems such as BC, and then the mamoths such as MS Project.
I aim to get mine in the middle, simple enough that it has virtualy no learning curve, and doesn’t have loads of stuff to get in the way, but advanced enough that it improves your workflow etc
I’d also like to think I have a few unique things up my (metaphorical) sleeve, such as:
Customizable Dashboard
Most PMSs give you an overview of all your projects, but thats as far as they go, I plan on letting the user choose exactly what they want to see, so they only see relevant things
This will basically let them build their own AR queries 😊
Keyboard shortcuts
Much like GMails keyboard shortcuts—Not much else to say
Improved flow
Many PMSs require you to take half a down unnecessary steps to do anyting, I plan to minimize the steps to do anything, fewer clicks, less time wasted, more productive
Unique visual represetation
Not sure how successful this will be, but its linked to the previous point
I will be trying out various ways to represent data
Layered functionality
This was an idea which came from this thread (before it got sidetracked 😛)
There will be a generic base, and then based on the type of project, it will tailor what features are available to you
Thats some of my more interesting/unique features off the top of my head