PUBLIC MARKS with tags task & todo

TellMeLater is an iPhone app that allows you to create quick and simple reminder for all the things that don't diserve to clutter your agenda or task manager : pay rent, watch that show… You are alerted with a local notification on your iPhone but also with an email and a Twitter direct message. There’s no way you’re going to miss it.

Task Coach is a simple open source todo manager to manage personal tasks and todo lists. It grew out of Frank's frustration that well-known task managers, such as those provided with Outlook or Lotus Notes, do not provide facilities for composite tasks. Often, tasks and other things todo consist of several activities. Task Coach is designed to deal with composite tasks.

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Web app Tudu Lists manages to-do items in prioritized lists you can share and make available as RSS feeds. Functionally similar to 37 Signals’ Ta-da lists (but not nearly as good-looking), the source code for Tudu Lists free to download and install on your own server. An installation of Tudu Lists is available for you to try for free as well.

Yes : only 36, because we're french and lazy, you know...