Rather than a typical "docking station" Apple focuses on simplistic connectivity between its MacBooks and ACDs. With either a 24" or 27" ACD, one can easily connect their MacBook via mDP and USB cable and it even provides power for the MacBook.
One can leave all peripherals connected to the ACDs port hub. Wirelessly, with an AEBS or TC, one can connect to printers and backup drives as well as networks. It really is a better way to dock.
With ThunderBolt, I expect ACDs will get FireWire and USB 3.0 ports. It will not matter if an MBA doesn't have FireWire or USB 3.0 ports on it, with the ThunderBolt chip it is possible and likely to be the primary advantage of migrating to TB. Then the ACDs will connect via a single TB cable. Apple really has the best solutions whether they compare to traditional methods or are radically different. Having power for my MBA right on my ACDs allows me to almost never mess with my MBA's power bricks and one can stay in my laptop bag rather than being needed with every use. Features like that sets Apple apart from competition.
One can leave all peripherals connected to the ACDs port hub. Wirelessly, with an AEBS or TC, one can connect to printers and backup drives as well as networks. It really is a better way to dock.
With ThunderBolt, I expect ACDs will get FireWire and USB 3.0 ports. It will not matter if an MBA doesn't have FireWire or USB 3.0 ports on it, with the ThunderBolt chip it is possible and likely to be the primary advantage of migrating to TB. Then the ACDs will connect via a single TB cable. Apple really has the best solutions whether they compare to traditional methods or are radically different. Having power for my MBA right on my ACDs allows me to almost never mess with my MBA's power bricks and one can stay in my laptop bag rather than being needed with every use. Features like that sets Apple apart from competition.