Apple has finally spoken out, but it hasn't said much.
A company spokesperson told the Wall Street Journal today that the allegations that a senior engineer warned executives of possible antenna issues, as reported by Bloomberg Business Week today, is "simply not true." The quote in the WSJ reads:
We challenge Bloomberg BusinessWeek to produce anything beyond rumors to back this up. It's simply not true.
Still, the WSJ cites a person familiar with the matter as saying that "Apple engineers were aware of risks that came with the new antenna design as early as a year ago" but that Jobs liked the design so much that the company moved forward with the development of the device using that design.