Well, at least temporarily. In an article on CNN about the Iceland volcano disrupting air travel:
http://www.cnn.com/2010/TRAVEL/04/15/iceland.flights/index.html?hpt=T2
Apple should use that on their iPad advertsThe prime minister of Norway was among those stranded by the closure of European airspace.
Jens Stoltenberg, who was in New York for President Barack Obama's nuclear summit, is running the Norwegian government from the United States via his new iPad, his press secretary Sindre Fossum Beyer said.
http://www.cnn.com/2010/TRAVEL/04/15/iceland.flights/index.html?hpt=T2