ResophNotes is another Windows application that syncs with the SimpleNote Website.
It looks more like Notational Velocity than Notes does, and synchronization works very well.
I like it! It seems to give me the best of both worlds (iTouch and PC) for ephemeral notes.
It also supports “Markdown” (text-to-HTML conversion) with Preview, though I do not need that as I am wedded to wiki markup.