I was surprised that MR didn't cover this. Astropad launched yesterday and it lets you use your iPad as a drawing tablet. I don't know what they're doing different to Air Stylus, but it's very good! It works both via USB and wifi.
Depending on your connection, it might vary. I didn't have a problem using it over wifi in another room last night though.
http://astropad.com
Depending on your connection, it might vary. I didn't have a problem using it over wifi in another room last night though.
http://astropad.com