What a Difference a Couple of Years Makes

Years pass and consumer electronics continue to get smaller.  A case in point is shown in this photo.  These items are USB power adapters from Apple.  Two years ago, the one on the bottom was the standard.  It was small enough to travel with and provided enough power to charge anything.  Last year, the iPhone came out and provided the middle one.  Much smaller but performed the same charging function.  Today, Apple provided the top one with the new iPhone 3G.  Smaller yer.  At this rate, next year, the iPhone will likely charge by static in the air and not require a power adaptor. 

You thing??