QOwnNotes is the open source plain-text notepad with markdown support and todo-list manager for Linux, Mac OS X and Windows, that works together with the notes application of ownCloud.
So you are able to write down your thoughts with QOwnNotes and edit or search for them later from your mobile device (like with CloudNotes) or the ownCloud web-service.
The notes are stored as plain text files and are synced with ownCloud's file sync functionality. Of course other software, like Dropbox, can be used too. More Info »
I like the concept of having notes accessible in plain text files, like it is done in the ownCloud notes app, to gain a maximum of freedom, but I was not able to find a decent desktop note taking tool or a text editor, that handles them well in conjunction with ownCloud.
Out of this need QOwnNotes was born.