Canonical announced plans today to shut down its Dropbox competitor Ubuntu One, a move that will also signal the end of its streaming music service. "If we offer a service, we want it to compete on a global scale," CEO Jane Silber noted in a blog post. "For Ubuntu One to continue to do that would require more investment than we are willing to make." Rather than compete with other cloud services that routinely offer substantial amounts of free storage, the company has instead decided to focus efforts on its operating system. Storage and music are no longer available for purchase from the Ubuntu One Store starting today. Existing customers can use the service until June 1st, while stored content will be available to download through July 30th. Annual subscribers, meanwhile, can expect a prorated refund soon.