Logtime - Diary, tasks and goals. All-in-one productivity solution.
Lockscreen Tasks - See your tasks list on your lock screen
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Things - Things is an easy to use task manager.
Playhouse - TikTok for real estate
Winterboard - Give your iPhone or iPod Touch a graphical overhaul!