I don't know about diseaster when they make my laptop last almost three times longer on batter than iPad does.
Dock stations are nice when done properly. When you need mobility to leave them behind and when you need CD drives and crapload of ports you take then with you. No compromise between usability and mobility.
I just wish they would also put GPU into them.
Sony Vaio Z.

Docking station includes integrated AMD Radeon HD6650M 1GB GFX. If i remember my products correctly, it also has the option of attaching a battery plate to the bottom for 14 hour battery life (7+7).
Wickedly expensive, but the absolute best for what it does. For now, at least.
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I think all laptops and tablets should have the same power and data connection. Makes it a whole lot of easier for all of us. Apple should join the party as well.
If they did, how could they keep selling dirt cheap cables/adaptors at insane prices?