Early buyers have now had a few days with their new iPhones, but some of them are running into a problem: in some cases the thin, flat phones are bending or warping slightly in users' pockets.

The earliest reports came from MacRumors, where forum posters reported bending in the iPhone 6 Plus after a weekend of use. Later, Geek.com writer Russell Holly posted photos of the smaller iPhone 6 exhibiting some of the same behavior. When placed on its (normally flat) front face, Holly's iPhone 6 rocks back and forth slightly on its face, a behavior we haven't noticed in any of our iPhone 6es or iPhone 6 Pluses. Based on the reports that we've read so far, it appears that some combination of body heat and pressure from the carrier's pocket is responsible for the warping.

We've reached out to Apple for a comment on the situation and will update this article if the company responds. It's worth noting that many phones, including the older iPhone 5 and 5S, have been known to bend occasionally—Cult of Mac has a nice roundup with plenty of examples. The question at this point is whether these reports of bending and warping iPhone 6 and iPhone 6 Plus units are isolated incidents or if, like the iPhone 4's antenna problems, the issue is endemic to the new design. We'll keep an eye on this one as more people begin receiving the phones and as we spend more time with them ourselves.