Personally, I think the numbers are way too low. They are failing to take into account the phenomena of critical mass which dictates that once a technology achieves x% market penetration it spikes up to greater than 60% use in a very very short amount of time. I also believe that by 2020 the number will be moot because you won't be able to purchase something that doesn't connect up automatically in some way. Just from the point of view of the manufacturer alone, if you can cheaply manufacturer a product that is going to automatically report back to you how and when its used and how often your going to make it with that option.