Now adays, sense I got my iTouch, almost all of the time I spend on the internet, I do it on my iTouch. Weather is Facebook, YouTube, D2JSP, or even some research on google, it's all done on my iTouch(Not really home that often due to school/work, but I like to log on here and check up on prices and what not). So an app would be a little easier(Also for people doing trading, instead of minimizing, they could just bring up the app on their iTouch, and do it whole D2 is still up).
IDK, how many people would use this, but personally, it wold be easier.
-Thanks