Another situation would be accidentally moving an item to the wrong list while sorting 'Do it Laters" I just did that and instinctively (probably from working with gmail so long) when the "item moved" alert popped up at the top of the scree, I moved to click 'undo' :) but it wasn't there. This would be a cool feature. Not a priority, I'm sure, but would save a little time from going to the search field and finding where I moved that item. Thanks!