Plan - Plan is a better way to organize.
Outplanr - Turn your to-do list into a real work plan
Clean Google Calendar - Makes Google Calendar look nicer & launches as a desktop app
Upper App - Simple and elegant free to-do list boosting productivity
LiquidTime - Smite procrastination. Plan, allocate, and track your time by making every task fit.
Flexibits - Makers of Cardhop, Chatology, and Fantastical.