Yes, Right Download and store your data somewhere else from ubuntu one . Ubuntu one is cloud based storage service that is about shut down very soon. And Yes this is not a joke or April fool. Canonical posted about that shutdown on canonicals blog .

Today we are announcing plans to shut down the Ubuntu One file services. This is a tough decision, particularly when our users rely so heavily on the functionality that Ubuntu One provides. However, like any company, we want to focus our efforts on our most important strategic initiatives and ensure we are not spread too thin.

Link to full canonical blog post

they mentioned in blog they are also shutting down the ubuntu one music store along with ubuntu one file service . so if you have stored any data on your ubuntu one or in ubuntu one music take it back from ubuntu . Download all your data before 31 July 2014 Deadline .

As of today, it will no longer be possible to purchase storage or music from the Ubuntu One store. The Ubuntu One file services will not be included in the upcoming Ubuntu 14.04 LTS release, and the Ubuntu One apps in older versions of Ubuntu and in the Ubuntu, Google, and Apple stores will be updated appropriately. The current services will be unavailable from 1 June 2014; user content will remain available for download until 31 July, at which time it will be deleted.

Canonicals will release all ubuntu code as open-source so if you are interested you can use that code to build your own ubuntu one file storage service , they will remove all ubuntu one and ubuntu one music related apps from google app store etc. and Ubuntu 14.04 LTS will no longer ship with default ubuntu one app .