The more I think about it, the more it seems that Amazon is trying to force the device to use WiFi when a connection is available in order to save on 3G costs. The more 3G we all use, the greater the bill Amazon has to pay. I'm really surprised they did not do away with 3G web browsing, other than to Amazon.com, a long time ago. From a business stand point that would make a lot of sense. But if they can force the devices to use WiFi when it is available, they will save on 3G costs. I would sure hate to see book prices or Kindle prices go up because Amazon's 3G bill goes through the roof. So I think their WiFi strategy is a good one. I also think WiFi will be many times faster than 3G, at least from my experience with AT&T 3G in my area.