SimpleText.ws signs you in using Google, offers revision history, and looks like a text editor from a classic black-and-white Mac. SimpleText's developer calls his app "human-sized," and means it.

To use SimpleText Enhancer, you’ll need a Mac with Mac OS 7.5.3 or later and a 68020 or later processor. The registration fee is US$19.95; users of earlier versions may upgrade for $11.95. Also ...