All this is still true, but portability makes it unnecessary for spouses to use bypass trusts solely to preserve the federal exemption amount.

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But if you're looking for the ultimate in QWERTY portability, then look no further than the new FlyBook V5.

ENGADGET: Hands-on with the Flybook V ultra-connected ultra-portable

But differences in national tax systems, for example over the portability and taxability of pensions, could be construed as an impediment to labour mobility.

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The Chromebook Pixel, while lightweight for its size, is far from the ultimate in portability, but given the insufficient and inconsistent progress that Chrome OS has made in enabling offline functionality, broadband remains Chrome OS' oxygen.

ENGADGET: Switched On: Chrome on the range

We would -- we've got plans to lower cost, to change purchasing models, address medical liability, insurance accountability, chronic and preexisting conditions, and access to affordable care for those with those conditions, insurance portability, expanded access -- but not doing it with creating more government, more bureaucracy, and more cost for the American taxpayer.

WHITEHOUSE: President Obama Takes Questions at GOP House Issues Conference | The White House