[Greg Jones]

I use time calculations also, but I've stopped trying to do serious work with the time estimate field in OF. You cannot set the task times in a project to auto-sum to the project itself, and times are not used on the iPhone at all. There is an excellent script or two here to calculate the sum of a project's times, but one still needs to manually enter that number into OmniFocus, and it still is not available on the iPhone.

I suppose what I should have said was expand the time estimate function so that it is more useful, or do away with it. For my more 'Project Management' needs, I use OmniOutliner Pro where I can automate calculations and do averages, etc. in addition (pardon the pun) to totals-works very well. It's too bad that the same functionality did not make it into OmniFocus.