A lawsuit filed in California by three disgruntled iPad owners claim that the device overheats too rapidly when used in warm conditions.
The complaint, which was filed July 23rd in Oakland, California, seeks unspecified damages and class action status. It claims that Apple's "magical" and "revolutionary" device "does not live up to the reasonable consumer's expectations created by Apple" because it "overheats so quickly under common weather conditions."
I've come across sporadic reports of iPads shutting down when too hot (same with the iPhone and iPod), but nothing that indicates a widespread issue. I guess the summer sun combined with a large surface area might make the iPad more susceptible to overheating, but I can't see this being anything more than a few isolated cases.