Simplenote, http://simple-note.appspot.com http://simple-note.appspot.com might be what you're looking for. It has a pretty good API and a nice web interface.

Simplenote, http://simple-note.appspot.com http://simple-note.appspot.com might be what you're looking for. It has a pretty good API and a nice web interface. I really like the iPhone app but I don't think it has any other native apps.