Today ended up being a big day for iPhone and Apple fans. Why? Apple kicked off the week by releasing its iOS 18.1 developer beta -- aka, the first iOS 18 beta with Apple Intelligence features included. It's a notable step forward for Apple's big AI push, though the Apple Intelligence experience available in the iOS 18.1 beta isn't a full or finished product. Not every Apple Intelligence feature is available to use, including Apple's most impressive one.