Currently, you cannot navigate across different fields both in table and list view without first using the mouse to select the desired field. This is a big waste of time constantly having to switch from the keyboard to the mouse.

In table view, TAB sometimes will advance to the next field, but the first key you press in the next field does not register. You have to hit any key to first activate the field before any data would be captured (IE - only the second key stroke is captured.) This too, is not productive and requires a retraining from how normal web forms and spreadsheets currently work.