It is completely simple to use, and it's FREE! There is no need to sign up to use this feature. No need to fill out elaborate forms to use Type With Me. Simply log on and type in a New Pad name. Once you pick your "pad" name, everyone simply logs on to the same pad, and each can see what the others are typing. You can make corrections or add information as you go. There seems to be no limit as to how many individuals can work on the same page at any given time.
I personally like this for tutoring. It allows me to offer advice to my students without being in the same room. I can ask questions or help the child with fluency as he/she is completing an assignment. This would be great for parents away from home, too. Should your child need help on an upcoming essay, simply log on at the same time and work together!