Many people like this background because they find it visually appealing. However, the purpose of a phone is communication and anything that reduces contrast, like superfluous texture in the background, actually make it harder to read. Why take an expensive screen and handicap it with unnecessary decoration?
i don't think it's specifically the texture, that's appealing, per se
to me, it's the illusion of a very basic, very 'analog' foundation underneath that shiny, polished OS.
you open up a folder, the OS opens up to display what's underneath
there's quite obviously 3 layers
the icons > the wallpaper > the fabric folder background
they each cast drop shadows onto the layer beyond.
I like the fabric. What I don't like is how you access it! In some games I accidentally made it come down.
they do need to do a little more tweaking, for sure.
it happens far too often that, when trying to drag down the notification drawer from within the messages app, i scroll all the way to the top of my message history
the notification drawer casts a proper shadow onto the entire screen aswell. Still, i'm not sure it should use the same background texture as the folders