If you use Tomboy Notes to manage reminders, then you can synchronize your notes to the cloud and to other devices using Ubuntu One.
Click the Tomboy Notes icon in the Launcher to open the application. Hover over the words Tomboy Notes in the top panel to find the Edit menu and select Preferences. Click the Synchronization tab and select Ubuntu One under Service. Click Save. You will be given the option to synchronize your notes now; click Yes or No as desired. Click Close to finish.
You can also create, view, edit, and delete notes from the web interface (Figure 11-4).
Figure 11-4 Syncing Tomboy Notes menu options