My friend had an idea for an app (or I guess prefrence) he wanted on his phone. We all agreed if it could be done for the iPhone, we should try it. Based on today, I dont think it can be. Tell me what you think. The prefrence lets you set time frames for ring tones. Lets say from 8am-5pm you want your phone on silent but once you are out of work/class you want it back at normal volume. I often forget to switch it and then miss calls. It would be cool to program the phone (or a program to auto change the setting) based on time tables. Can this be done based on what we saw at WWDC? I am expecting a no. What code would be needed to do this?