It's almost impossible if you need to do anything related to graphics. Even picking a color. Maybe you have such things already laid out in proper sass files, a

It's almost impossible if you need to do anything related to graphics. Even picking a color. Maybe you have such things already laid out in proper sass files, and you've mastered zen-coding, know most of the various parameters, have templates for everything, don't need to look up sample code all the time, and you don't need to copy and paste random things from the web (text selection in safari is still awfully dodgy). And you don't need the various standards and documentation open right next to you. Still.. even plain HTML is a lot more visual than code. so much switching can suck. .. now, two or three iPads, that's the ticket.