Picking Time
ejohn.org
ejohn.org
Now, that's anecdotal, but without usability testing rather than opinion, you shouldn't choose this widget over and above existing familiar ones unless "looking slick" is your primary goal.
Watch-style time selector: http://holding.biplane.dk/watch/
Perhaps not quite as polished - but I'm still impressed.
I don't want to make precise movements with my mouse. Buttons should be large and margins between buttons should keep me from accidentally clicking the wrong one. The time picker fails on both counts.
Also, first picking AM/PM before you pick the hour is confusing. Add to that that the control is huge, so it wouldn't fit in any normal web forms.
Good exercise in UI design, but I hope no web-app will ever force me to use it.
I would hope that other touchscreen devices advertise their (lack of) capability in the user agent.
For a mouse-click, however, maybe a mouse-gesture--circular-selector is even more quick.
I have to take issue with, "One thing that you'll notice using it is that it's fast. Very fast. I'd argue much faster than clicking into the input area, moving to the keyboard for entering the time, typing the time, then moving back to mouse." This may be true but is it faster than tabbing to the input box, typing in the time and then tabbing to the next field? It's a nice addition but I'm glad you can still tab, type and tab away.
ie: The top-level menu choice is AM or PM, then there are 12 sub-menus, and each has identically named set of sub-sub-menus (00, 15, 30, 45).
EDIT a difference is that it remembers the (sub-)submenu chosen when you change a higher-level menu.
EDIT no, it does. You have to hover and wait. When you click, it sets the time. (I was clicking immediately.)
AH: the confusing thing is that it is already "open" when I visit the webpage. But the instructions say you have to click it first to open it.