If we talk about updates, then users Android (and not only Android) devices are divided into three unequal parts. Most of them are not interested in system updates at all, and even when a new firmware version 'arrives' on their phone, they may not want to update it. Why unnecessary complications when everything works anyway?
There are those who closely follow the announcements of new versions Android, read reviews of early Developers Preview versions and clearly understand what exactly the new version of the OS will give them and why wait for it. This is the most active, but at the same time the smallest part of users.
And, finally, there are those who have heard something about the new version of the OS and loudly complain about the lack of prompt updates to their smartphone, but at the same time they have no idea what exactly these updates will give them. The fresh version Android is vital simply for the reason that someone already has it. It is too lazy to delve into the details of the update, but intuition suggests that this is an amazingly necessary and important piece, which they are trying to deprive the buyer of last year's device.
What can a new OS version give the user? The average smartphone owner will not notice most of the changes. Support for new standards, optimization, new operating modes – all this is hidden somewhere 'under the hood' and will remain unnoticed. Then there are system functions like Direct Share or the app permission management system in Android 6.0. In theory, this is all very important and useful, but in practice it is also not particularly interesting to most. Anyway, this is clearly not what the smartphone update is really waiting for. Updates of standard OS applications (keyboard, camera, gallery, browser, etc.) are already more interesting, only in recent years they have all been updated through Google Play and are not tied to the version Android. The last item is the visual changes – the launcher, the lock screen, a set of wallpapers and icons. These changes are far from the most important, and from a geek's point of view, comparing the redrawn widget with the new power saving mode is simply ridiculous. But this is exactly what ordinary users expect to get. The new version of the OS should feel in a new way, it is for this effect of novelty that the update is expected. And all these Direct Share and other subtleties are the tenth thing.
Android N Launcher is the first attempt at assessing how fun and user-friendly the new OS will be. And try to understand in advance whether it is really worth killing yourself about the lack of operational updates. After all, it's one thing to read about a function, and quite another to actually check how useful it is.
Although the app is based on Android N Developers Preview, it is not official, and in addition to confirmed innovations, it contains a number of additional features from leaks and rumors. For example, Slide Screen is a sidebar that can be invoked with a horizontal swipe from the left edge of the screen. Or an improved application menu.
The main problem Android N Launcher is a bunch of settings and additional features. It is extremely problematic to understand what will be in Android N and what the developers have added on their own. On the other hand, the Developers Preview versions themselves may differ from the final OS version, so there are no guarantees in any case.