An iPad could stream the display, but until Anet release an app-based guildwars client for the iPad, no.
Basically you could use it as a display / remote monitor for your pc or mac over your wifi network like a screen. But why would you? The screen on your pc is bigger, better and already connected. Plus you'd have to take your keyboard and mouse with you, as the client would be running on your pc.
Last edited by MaxBorken; Feb 14, 2014 at 06:51 AM // 06:51..