What would be great is some kind of application that integrates overview-type information (people, duration, timelines) for a set of multiple projects as well as the details of the tasks that need to be done for these projects.

Currently, KGTD does an outstanding job of the latter, and OmniPlan does a below-average job of the former, in my opinion. The title "tasks" rather than projects shows that the software is set up to have a separate file for each project, so then the big picture is obscured for someone who has many projects.

Also, OmniPlan carries forth the MicrosoftProject orientation that people need to be managed, budgeted, invoiced, surveilled. While this may be true in a number of instances, it certainly isn't universally the case. Some of us just need to be able to create a realistic picture of what's possible to do and then set about doing it, tracking and making adjustments as need be.

As it currently stands, OmniPlan provides no advantage over a simple spreadsheet for planning projects.