The Journal quotes an Apple spokesperson as saying:
"We challenge Bloomberg BusinessWeek to produce anything beyond rumors to back this up. It's simply not true."
The Journal also cites sources as saying there will be no recall of the iPhone 4 announced at the press event tomorrow.
It's anyone's guess as to what Apple will say tomorrow. The company may say there is a problem and continue to offer penalty-free refunds, it may give free bumpers to insulate the external antenna to customers who want them, or it may say everything is fine. We can't wait.
[Hat tip to Loop Insight & Business Insider]