Yep - this is a mistake people when evalutating gadget sales in general. The timeframe has to be set to the product lifecycle (i.e. t=0 is the launch) to make

Yep - this is a mistake people when evalutating gadget sales in general. The timeframe has to be set to the product lifecycle (i.e. t=0 is the launch) to make comparisons or determine trends. YoY is skewed heavily by the product launches.