Think logically about this. Apple is not infallible. They can and do make mistakes. Glitches are very common in new gadgets and overheating is always a problem when you're dealing with components that generate heat. It's only made more difficult when you're dealing with a small, enclosed device with components tightly packed together. This is a plausible and very familiar story. Could it be possible that some people are having real problems with overheating?
If the new iPhones are, in fact, overheating Apple should be called out and given an opportunity to respond. Automatically assuming that any criticism of Apple is a ruse designed to discredit them is not only foolish but counter-productive. How are they supposed to get better if their own supporters are willing to overlook and excuse their mistakes?
Users, like blog authors, may or may not be independent. They can have agendas of their own or be hired/paid to say certain things.
Also, I sure hope it is not true (or at least not an inherent issue in the design). I have a 3GS on my birthday list and am really excited to upgrade from my iPhone EDGE.
Perhaps there's a problem with some of the phones and not others?
Have not noticed the same with my 3GS.
Still, even the three I mentioned won't really benefit too much as there still is no clear #2 competitor for the iPhone.
One of the 'reports' was someone who buried their iPhone under a pillow and took a nap. I don't know about you but a music device, under a hot pillow with a hot head on top for a couple hours smells like a recipe for a hot ... anything.