Oh, I like that! So, it's reversible? I have a pile of 64 patch blocks made with 2 1/2' squares (2' finished) that I put together when I had the flu in January...and then again in February. And then a friend gave me a whole shoebox full of 2" squares that I'm going to have to do something with one of these days. Yikes...little squares, everywhere!
I have a couple of UFO's that are going to get the serpentine treatment just as soon as that machine follows me home; it's such a useful stitch.