i travel a lot and enter my flight information into the built in iphone calendar app. most flight times may depart at odd times like say 7:53pm but the calendar app only allows me to input it as 7:50 or 7:55... they should make the time field editable so that you can type in the exact time vs having to scroll up or down. it may not really be a big deal, but other calendar apps i've used on mobile devices was able to be accurate in the times you enter.