Nights & Weekends , weekends being the more common "near unlimited use" times for the cell phone user to get the most out of their service will be the most overused periods for a provider. Weekends are for play, and everyone is checking websites for movie times, directions, or just having fun catching up with people, and eating up bandwidth of the provider most likely. I dont think its as much a conspiracy as social engineering.... of course I love a good conspiracy theory!
