Obsidian, a service that allows users to create notes in Markdown format, has announced that it will open source the Obsidian Canvas file format used by the service as the 'JSON Canvas' file format.

I'm in the process of moving into a P6 to replace my much-loved P3, because of the 3G switchoff. Up till now I've used many of the Simple Mobile suite of tools, including the dialer. But for the new ...