Mesa
Looking For A Good, Free OS X Spreadsheet? Welcome Mesa!
I have a copy of Mesa for OS/2. It came with my copy of Describe, which was an excellent word processor for OS/2 (and later Windows IIRC). I really liked using Mesa. The screenshot chosen for the article linked to above looks pretty weak, I'm surprised they didn't go for something with charts in it.
Written on June 19, 2001