I miss:
Task Descriptions.
Search for: fields in contacts; Tasks; Notes; Calendar; Content.
categories: grouping contacts notes and tasks in categories.
Prioritizing tasks
calendar functions like setting exact time reminders and costume repeat options like first Friday of every month.
Pause in media player ie. I cant play audio books or pod casts where I left off
intuitive button layout for powering on and off and volume control.
bluetooth viable for 2 minutes.
Battery life I would love to get a full day of use for those days I go out after work.