Winterboard - Give your iPhone or iPod Touch a graphical overhaul!

Any Text - Put any text on the lock screen.

Lockinfo - You can find this app in Cydia - Tweaks.

Do - Do helps you run productive meetings. Do work you love.

Springtomize - Tear down the walls

Tasks - The new task app from the team that brought us Wunderlist, Microsoft To-Do is a great way to manage tasks. List everything you need to do—or import tasks from Outlook, Todoist, and Wunderlist so you don't have to start over.