…So the first thing we had to do was clear. With the original Nintendo DS Browser, whenever an action was performed, some time would pass before the program processed it and then reflected it on the screen. This time we decided to make that response time almost instantaneous at the rate of 1/60 of a second. Even if a webpage was going to be a little slow appearing, we wanted to at least show something moving. This had already been done for the Wii Internet Channel, so we decided to take that route with the Nintendo DSi Browser as well. We asked Opera, and the people in charge there agreed, so under that policy, we made is so that users could scroll a page in real time. – Eiichi Shirakawa, DSi browser developer

Read the full Interview here