Great idea: the power supply as a mini docking station
Interesting product from Lenovo: Its “Power Hub” is a combination of a powered USB hub and a power supply. The HP Voodoo Envy did something similar and had an Ethernet port in the power supply. Taking the idea further, power supplies could become small docking stations in the future and contain larger not as frequently used ports such as VGA. On the go, without the power supply, you won’t need these ports and have a more compact notebook. But if you do want them, you only bring the power supply; no other adapters needed. Apple is bad with adapters (=there are too many), so this might be a solution for them, especially for the MacBook Air.