This is irrelevant since it still doesn't allow you to use it as a usb port and do file management.
A bigger toy is still just a toy. It doesn't come close to being any sort of laptop replacement like the Surface 4 is.
I'm really not sure why everyone gets hung up with two things...
a) no mouse support
b) no file management
I think that's the most backwards thinking I've ever heard. The reason why Apple will not support this in iOS devices is to force you to move on. If you don't want to move towards a new paradigm of computing, then stick with a laptop. But that does NOT mean that it's a toy. It means that it's different and many younger generations have no clue why you want the "benefit" of manually dragging and dropping your files around the place with a plastic dead rodent.
Here's how future-looking people see this.
a) touch is superior is the UI is designed around it.
b) folder-based file management is antiquated and better served via attribute-based file systems that are abstracted.
For instance, with touch I can use 10+ fingers to interact with an app. Now this doesn't work *if* the developer is thinking of how things should be interacted with a mouse. But it *does* work if the developer has embraced it. It's just as easy to do most things you need on a touch-based device, and the focal point of the work is much more pronounced. For professionals, this is important.
Many professionals would rather access their data and not have to know how the file system was designed. For instance, I'd rather ask Siri "show me that drawing I made for the Rogerson building" and have it open. That's called an "attribute-based" file system. The file is stored in a heap and the system can locate the file based on certain heuristic tags. That's the "future", but if you want to keep putting copies of a file (or aliases) in different folders and manage that manually, I guess "have at it".
The future of file storage *is* iCloud. Period. Or Dropbox, but iCloud has this idea down. The idea is that you have access to all of your documents on any device and they are stored locally if they are needed. That way the device is lightweight and you have a persistent backup. When you have a manual file system, it's next to impossible to do this.
So, I guess the point I'm making is Apple has a plan and it's much further in the future than many of us can comprehend. But it's where things are going. If you don't want to be part of the future and want to stick to legacy methods, that's fine too. But I wouldn't expect Apple to do any of the things you want. But that does not preclude this device from being used by professionals who have already grasped the future.