You could try out Nixnote. It's a full fledged desktop client for Linux with an interface similar to the regular web interface. There are deb packages. Please, don't try Nixnote2, which is still in beta.
Are we at some point going to be forced to use this new, screen estate wasting "mobile" design? I'd like to keep the compact 3-pane design. I hope that this will at the very least stay as an option.