8 hour days
I see there was a post regarding customization of the # of hours in a day. I'm casting my vote for that, too, as we're a small company and haven't worked an eight hour day since we started the company. Our tasks are pretty granular, so number of days isn't necessary; 1.5 days instead of 12 hours doesn't really tell us what we need to know when we're looking at it.
We're definitely considering it for the next version.
Michael H. Pryor
Fog Creek Home