I have long been a fan of LogMeIn, software which allows me to help my wife or sons when they are struggling with something on their computers (say adding a printer). LogMeIn was designed for remote management over the web. So, I can be at work, and my wife at her work, and she may call to ask for help. Sometimes I can talk her through a process, but other times, I really need to drive the computer. LogMeIn allows for that, even if her laptop is across town.
The folks at LogMeIn have taken their remote management and streamlined it to allow users to share what is on their computer screen with other users, specifically on iPads. The beauty of this is that the viewer can view, but cannot edit. JoinMeIn was originally designed with a business user in mind, but really is an amazing tool for our students with visual impairment (VI).
Imagine the teacher using the SmartBoard, and all the students are engaged watching the lesson unfold. Some VI students might follow along by pointing their closed circuit tv at the SmartBoard Screen, but this is not ideal because the image quality is not great (CCTVs are not really designed for this use). Now imagine that the VI student is able to watch the lesson on his/her iPad, even taking screen shots of salient images. The student is able to expand, and hone in on anything they deem important. Watch the "how-to" video here.
JoinMe is free. To use it, first download the iDevice app here. Or, if your an Android user, get the app here. Then get the software for your computer. PC users here, and Mac users here.