Using the iPad as a digital whiteboard
I'm looking to buy a macbook and an iPad. My main reason for buying an iPad is that I want to be able to connect the macbook to a projector in a classroom, run a slide show on the macbook and then not only control the slide show, but also be able to write onto the slide show from the iPad. For example if I have a map on the slideshow and I want to circle points of interest, can I do this from the iPad?