In a column that repeats the usual Thomas Friedman line about all the barriers between countries coming down in the brave new world (while conveniently ignoring the barriers that protect highly paid professionals like doctors and lawyers, allowing them to earn far more than their counterparts elsewhere in the world), he approvingly quotes Michael Dell:
"'I always remind people that 96 percent of our potential new customers today live outside of America.' That’s the rest of the world. And if companies like Dell want to sell to them, he added, it needs to design and manufacture some parts of its products in their countries."
The statement Friedman attributes to Dell implies the exact opposite of his "world is flat" story. Dell is saying that he must design and manufacture a portion of the products he sells in the countries he sells them. This implies that there are political barriers to complete mobility, which would mean that Dell could manufacture and design his products wherever it is cheapest to do, regardless of where he sells them.
Friedman's quote from Dell indicates that protectionist restrictions are still an important reality in the world. Presumably the logical response would be to either try to reduce these barriers in other countries or to adjust our trade policies to ensure that they work best for the United States in a world that is clearly not flat.