I’ve written before about both Office2HD as my iPad productivity suite of chocie (and I was happy to see that MacWorld agreed, putting Office2HD in their top 3) and my use of Word’s track changes to grade papers on line. I was thrilled to discover (quite by accident, I might add) that Office2HD has track changes. I tested it out, and it works pretty much the same as Word’s. I would like the ink to be red rather than blue (if for no other reason than the blue doesn’t stick out against the black quite as much as I would like), but I can now grade papers on the iPad, which will make life a bit more convenient.