Unfortunately the URL prolly requires a subscription, but if you can get a free trial give it a shot if only for a lesson I see in application design: Visicalc worked exactly like a paper spreadsheet, only better. The old NY Times interface (still accessible, I am sure) was perfectly sensible and somehow a PITA to this long-time reader of the paper version. The new app feels just like the paper version and I will now read about three times more every day.

Great design lesson, I think. (Sorry if every other on-line paper has the same app. <g>)