Ubuntu one for note is dead, now I'm using evernote
Usually i use tomdroid to take notes on Android and sync it to my ubuntu using Tomboy, so I can read or add it later, even offline. But Ubuntu one for note is dead, now I'm using evernote. For ubuntu, I use WINE (PlayOnLinux) to install windows version of evernote, it work nicely :D. Now notes get sync, and allow offline editing.
PS: Google Keep has good and clean interface on android, but lack of desktop version. And have to get online for editing note.