I have an iPad3 and a Macbook Air. I love the drawing app I have on the iPad but I would like to do more. Is it possible to use the iPad like a tablet and connect to the Macbook to use it? I don't mean just to synch stuff I've drawn on the iPad, I mean to actually use it connected to the Mac and use more advanced drawing software on the Mac? I am thinking not, but just wanted to check before I invest in a tablet!