What about all the "other" 4G devices and tablets out there? Why is the focus only on the iPad? I don't understand that. People on this very forum were clamoring that the iPad3 better have 4G or no sale. Now that it does, people are whining that the iPad (not the user themselves) are eating through their data caps? Jeez... does no one accept responsibility for their actions?
Really now, where is the responsibility of the user to understand that using a cell's data plan is a finite resource that should be managed responsibly? I use my iPad2 3G service only when absolutely necessary to take care of mobile-stuff to keep me connected at work. Otherwise, it's WiFi all the way.
Now, if some clown wants to watch an HD movie on a cell-data plan while commuting to work on a subway bus instead of WiFi, don't even start complaining as to why you burned through all data usage. You have only yourself to blame for it. It's not the Telecom's fault and it's certainly not Apple's fault.
People here seem to have some sense of entitlement that every pipe is an unlimited resource just begging to be exploited.