(Image credit: Majin Bu on X)

We've already seen some evidence that the foldable iPhone Ultra is on the way, thanks to code references in the iOS 27 beta, but there may be more hints already out there. According to Mark Gurman at Bloomberg, there are a bunch of references to both the foldable iPhone and the touchscreen MacBook Ultra in their respective software betas.It makes perfect sense that there would be some clues as to what these devices may have to offer. The duo will likely be released at some point over the next 12 months, with an expected fall launch for iPhone Ultra and an early 2027 appearance for MacBook Ultra. That means they'll be running on iOS 27 and macOS 27, respectively, both of which have just been released in beta form.The most well-known hint for the existence of the iPhone Ultra is the aforementioned code references. These reference various things that could only apply to a foldable phone, such as multiple displays, fold state and the angle of the central hinge.Apple always makes multiple comments to developers that they should be building apps for something called "app adaptability." This means apps should be able to work across screens of different sizes and aspect ratios, rather than the same basic shape as a traditional iPhone. While this could apply to existing devices like iPads, the fact that the iPhone Ultra has two displays that are different to anything Apple has released so far, means it's going to be crucial that iPhone apps can adapt.