Was Thinking...
...over the weekend if I had become an 'old school' IT guy. Trapped in the 'Old Think' about needing a 'real' desktop PC to get anything done, keeping everything 'traditional' just because that's the way I've always done it.
And the answer was, "I don't think so." As chrisbedford and Vulpine mentioned above, the driving factors here will be increased productivity (perceived, anyway) and cost. 'Power' tasks like CAD and such will still require cutting-edge hardware, and computer-saavy 'power users' will still wish to retain the option, but for the majority of users that only require a dedicated app or two, an Email client (it's not dead yet, or if you wish to think in future terms, a 'connectivity' client), and an Office suite, a 'powerful enough' tablet-factor (bigger screen than a smartphone, big enough to comfortably work on 'on the fly', tetherable/transferable to a smart-phone (I think I see where BlackBerry was trying to go with the PlayBook) for when the users wanted to be truly mobile would do. A wireless charging station would be more apt, with links to the display and peripheral devices being wireless (users HATE wires).
'Wearable' accessories aside (they'd have to be more stylish than even the best Bluetooth headset), if they can speed up consistent operation of the devices to where they're 'good enough' (most users don't care about hardware, chrisbedford, just whether it gets the job done), while keeping things small and light (batteries and SSD chips spread thin and evenly through the device) I think they may have it...
