Patternism is a tool for knitters and crocheters: a combination PDF pattern viewer and stitch counter for the iPad. Patternism will keep track of your progress through all of your projects, giving you row and repeat counters, as well as two customizable counters. It also lets you zoom in and add row-specific highlights and notes to the pattern to easily focus on your next steps. Everything is connected to the row counter, so each time you start a new repeat, you'll see your highlights already in place. You can use Patternism to open and save PDFs from the Safari or Mail apps, or you can use iTunes file sharing to add patterns from your computer.
Need help? Complete instructions are on the website at http://patternism.net/instructions.html